428509900

素因数分解:

$2^2\times 5^2\times 7^3\times {\mathrm{13}}^1\times {\mathrm{31}}^2$

素因数の和:110

約数の個数: 216

約数和(自身を含む): 1206693600

約数和(自身を除く): 778183700

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 25, 26, 28, 31, 35, 49, 50, 52, 62, 65, 70, 91, 98, 100, 124, 130, 140, 155, 175, 182, 196, 217, 245, 260, 310, 325, 343, 350, 364, 403, 434, 455, 490, 620, 637, 650, 686, 700, 775, 806, 868, 910, 961, 980, 1085, 1225, 1274, 1300, 1372, 1519, 1550, 1612, 1715, 1820, 1922, 2015, 2170, 2275, 2450, 2548, 2821, 3038, 3100, 3185, 3430, 3844, 4030, 4340, 4459, 4550, 4805, 4900, 5425, 5642, 6076, 6370, 6727, 6860, 7595, 8060, 8575, 8918, 9100, 9610, 10075, 10633, 10850, 11284, 12493, 12740, 13454, 14105, 15190, 15925, 17150, 17836, 19220, 19747, 20150, 21266, 21700, 22295, 24025, 24986, 26908, 28210, 30380, 31850, 33635, 34300, 37975, 39494, 40300, 42532, 44590, 47089, 48050, 49972, 53165, 56420, 62465, 63700, 67270, 70525, 75950, 78988, 87451, 89180, 94178, 96100, 98735, 106330, 111475, 124930, 134540, 138229, 141050, 151900, 168175, 174902, 188356, 197470, 212660, 222950, 235445, 249860, 265825, 276458, 282100, 312325, 329623, 336350, 349804, 394940, 437255, 445900, 470890, 493675, 531650, 552916, 612157, 624650, 659246, 672700, 691145, 874510, 941780, 987350, 1063300, 1177225, 1224314, 1249300, 1318492, 1382290, 1648115, 1749020, 1974700, 2186275, 2354450, 2448628, 2764580, 3060785, 3296230, 3455725, 4285099, 4372550, 4708900, 6121570, 6592460, 6911450, 8240575, 8570198, 8745100, 12243140, 13822900, 15303925, 16481150, 17140396, 21425495, 30607850, 32962300, 42850990, 61215700, 85701980, 107127475, 214254950, 428509900]

約数ペア:

[(1, 428509900), (2, 214254950), (4, 107127475), (5, 85701980), (7, 61215700), (10, 42850990), (13, 32962300), (14, 30607850), (20, 21425495), (25, 17140396), (26, 16481150), (28, 15303925), (31, 13822900), (35, 12243140), (49, 8745100), (50, 8570198), (52, 8240575), (62, 6911450), (65, 6592460), (70, 6121570), (91, 4708900), (98, 4372550), (100, 4285099), (124, 3455725), (130, 3296230), (140, 3060785), (155, 2764580), (175, 2448628), (182, 2354450), (196, 2186275), (217, 1974700), (245, 1749020), (260, 1648115), (310, 1382290), (325, 1318492), (343, 1249300), (350, 1224314), (364, 1177225), (403, 1063300), (434, 987350), (455, 941780), (490, 874510), (620, 691145), (637, 672700), (650, 659246), (686, 624650), (700, 612157), (775, 552916), (806, 531650), (868, 493675), (910, 470890), (961, 445900), (980, 437255), (1085, 394940), (1225, 349804), (1274, 336350), (1300, 329623), (1372, 312325), (1519, 282100), (1550, 276458), (1612, 265825), (1715, 249860), (1820, 235445), (1922, 222950), (2015, 212660), (2170, 197470), (2275, 188356), (2450, 174902), (2548, 168175), (2821, 151900), (3038, 141050), (3100, 138229), (3185, 134540), (3430, 124930), (3844, 111475), (4030, 106330), (4340, 98735), (4459, 96100), (4550, 94178), (4805, 89180), (4900, 87451), (5425, 78988), (5642, 75950), (6076, 70525), (6370, 67270), (6727, 63700), (6860, 62465), (7595, 56420), (8060, 53165), (8575, 49972), (8918, 48050), (9100, 47089), (9610, 44590), (10075, 42532), (10633, 40300), (10850, 39494), (11284, 37975), (12493, 34300), (12740, 33635), (13454, 31850), (14105, 30380), (15190, 28210), (15925, 26908), (17150, 24986), (17836, 24025), (19220, 22295), (19747, 21700), (20150, 21266)]