201996620

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1$

素因数の和:224

約数の個数: 144

約数和(自身を含む): 522466560

約数和(自身を除く): 320469940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 49, 61, 62, 70, 98, 109, 122, 124, 140, 155, 196, 217, 218, 244, 245, 305, 310, 427, 434, 436, 490, 545, 610, 620, 763, 854, 868, 980, 1085, 1090, 1220, 1519, 1526, 1708, 1891, 2135, 2170, 2180, 2989, 3038, 3052, 3379, 3782, 3815, 4270, 4340, 5341, 5978, 6076, 6649, 6758, 7564, 7595, 7630, 8540, 9455, 10682, 11956, 13237, 13298, 13516, 14945, 15190, 15260, 16895, 18910, 21364, 23653, 26474, 26596, 26705, 29890, 30380, 33245, 33790, 37820, 46543, 47306, 52948, 53410, 59780, 66185, 66490, 67580, 92659, 93086, 94612, 106820, 118265, 132370, 132980, 165571, 185318, 186172, 206119, 232715, 236530, 264740, 325801, 331142, 370636, 412238, 463295, 465430, 473060, 651602, 662284, 824476, 827855, 926590, 930860, 1030595, 1303204, 1442833, 1629005, 1655710, 1853180, 2061190, 2885666, 3258010, 3311420, 4122380, 5771332, 6516020, 7214165, 10099831, 14428330, 20199662, 28856660, 40399324, 50499155, 100998310, 201996620]

約数ペア:

[(1, 201996620), (2, 100998310), (4, 50499155), (5, 40399324), (7, 28856660), (10, 20199662), (14, 14428330), (20, 10099831), (28, 7214165), (31, 6516020), (35, 5771332), (49, 4122380), (61, 3311420), (62, 3258010), (70, 2885666), (98, 2061190), (109, 1853180), (122, 1655710), (124, 1629005), (140, 1442833), (155, 1303204), (196, 1030595), (217, 930860), (218, 926590), (244, 827855), (245, 824476), (305, 662284), (310, 651602), (427, 473060), (434, 465430), (436, 463295), (490, 412238), (545, 370636), (610, 331142), (620, 325801), (763, 264740), (854, 236530), (868, 232715), (980, 206119), (1085, 186172), (1090, 185318), (1220, 165571), (1519, 132980), (1526, 132370), (1708, 118265), (1891, 106820), (2135, 94612), (2170, 93086), (2180, 92659), (2989, 67580), (3038, 66490), (3052, 66185), (3379, 59780), (3782, 53410), (3815, 52948), (4270, 47306), (4340, 46543), (5341, 37820), (5978, 33790), (6076, 33245), (6649, 30380), (6758, 29890), (7564, 26705), (7595, 26596), (7630, 26474), (8540, 23653), (9455, 21364), (10682, 18910), (11956, 16895), (13237, 15260), (13298, 15190), (13516, 14945)]