18445916360

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{409}}^1\times {\mathrm{983}}^1$

素因数の和:1471

約数の個数: 128

約数和(自身を含む): 44152473600

約数和(自身を除く): 25706557240

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 37, 40, 62, 74, 124, 148, 155, 185, 248, 296, 310, 370, 409, 620, 740, 818, 983, 1147, 1240, 1480, 1636, 1966, 2045, 2294, 3272, 3932, 4090, 4588, 4915, 5735, 7864, 8180, 9176, 9830, 11470, 12679, 15133, 16360, 19660, 22940, 25358, 30266, 30473, 36371, 39320, 45880, 50716, 60532, 60946, 63395, 72742, 75665, 101432, 121064, 121892, 126790, 145484, 151330, 152365, 181855, 243784, 253580, 290968, 302660, 304730, 363710, 402047, 469123, 507160, 605320, 609460, 727420, 804094, 938246, 1127501, 1218920, 1454840, 1608188, 1876492, 2010235, 2255002, 2345615, 3216376, 3752984, 4020470, 4510004, 4691230, 5637505, 8040940, 9020008, 9382460, 11275010, 12463457, 14875739, 16081880, 18764920, 22550020, 24926914, 29751478, 45100040, 49853828, 59502956, 62317285, 74378695, 99707656, 119005912, 124634570, 148757390, 249269140, 297514780, 461147909, 498538280, 595029560, 922295818, 1844591636, 2305739545, 3689183272, 4611479090, 9222958180, 18445916360]

約数ペア:

[(1, 18445916360), (2, 9222958180), (4, 4611479090), (5, 3689183272), (8, 2305739545), (10, 1844591636), (20, 922295818), (31, 595029560), (37, 498538280), (40, 461147909), (62, 297514780), (74, 249269140), (124, 148757390), (148, 124634570), (155, 119005912), (185, 99707656), (248, 74378695), (296, 62317285), (310, 59502956), (370, 49853828), (409, 45100040), (620, 29751478), (740, 24926914), (818, 22550020), (983, 18764920), (1147, 16081880), (1240, 14875739), (1480, 12463457), (1636, 11275010), (1966, 9382460), (2045, 9020008), (2294, 8040940), (3272, 5637505), (3932, 4691230), (4090, 4510004), (4588, 4020470), (4915, 3752984), (5735, 3216376), (7864, 2345615), (8180, 2255002), (9176, 2010235), (9830, 1876492), (11470, 1608188), (12679, 1454840), (15133, 1218920), (16360, 1127501), (19660, 938246), (22940, 804094), (25358, 727420), (30266, 609460), (30473, 605320), (36371, 507160), (39320, 469123), (45880, 402047), (50716, 363710), (60532, 304730), (60946, 302660), (63395, 290968), (72742, 253580), (75665, 243784), (101432, 181855), (121064, 152365), (121892, 151330), (126790, 145484)]