28865340

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{739}}^1$

素因数の和:792

約数の個数: 144

約数和(自身を含む): 103434240

約数和(自身を除く): 74568900

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 31, 35, 36, 42, 45, 60, 62, 63, 70, 84, 90, 93, 105, 124, 126, 140, 155, 180, 186, 210, 217, 252, 279, 310, 315, 372, 420, 434, 465, 558, 620, 630, 651, 739, 868, 930, 1085, 1116, 1260, 1302, 1395, 1478, 1860, 1953, 2170, 2217, 2604, 2790, 2956, 3255, 3695, 3906, 4340, 4434, 5173, 5580, 6510, 6651, 7390, 7812, 8868, 9765, 10346, 11085, 13020, 13302, 14780, 15519, 19530, 20692, 22170, 22909, 25865, 26604, 31038, 33255, 39060, 44340, 45818, 46557, 51730, 62076, 66510, 68727, 77595, 91636, 93114, 103460, 114545, 133020, 137454, 155190, 160363, 186228, 206181, 229090, 232785, 274908, 310380, 320726, 343635, 412362, 458180, 465570, 481089, 641452, 687270, 801815, 824724, 931140, 962178, 1030905, 1374540, 1443267, 1603630, 1924356, 2061810, 2405445, 2886534, 3207260, 4123620, 4810890, 5773068, 7216335, 9621780, 14432670, 28865340]

約数ペア:

[(1, 28865340), (2, 14432670), (3, 9621780), (4, 7216335), (5, 5773068), (6, 4810890), (7, 4123620), (9, 3207260), (10, 2886534), (12, 2405445), (14, 2061810), (15, 1924356), (18, 1603630), (20, 1443267), (21, 1374540), (28, 1030905), (30, 962178), (31, 931140), (35, 824724), (36, 801815), (42, 687270), (45, 641452), (60, 481089), (62, 465570), (63, 458180), (70, 412362), (84, 343635), (90, 320726), (93, 310380), (105, 274908), (124, 232785), (126, 229090), (140, 206181), (155, 186228), (180, 160363), (186, 155190), (210, 137454), (217, 133020), (252, 114545), (279, 103460), (310, 93114), (315, 91636), (372, 77595), (420, 68727), (434, 66510), (465, 62076), (558, 51730), (620, 46557), (630, 45818), (651, 44340), (739, 39060), (868, 33255), (930, 31038), (1085, 26604), (1116, 25865), (1260, 22909), (1302, 22170), (1395, 20692), (1478, 19530), (1860, 15519), (1953, 14780), (2170, 13302), (2217, 13020), (2604, 11085), (2790, 10346), (2956, 9765), (3255, 8868), (3695, 7812), (3906, 7390), (4340, 6651), (4434, 6510), (5173, 5580)]