2678830

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{71}}^1$

素因数の和:110

約数の個数: 64

約数和(自身を含む): 6220800

約数和(自身を除く): 3541970

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 49, 55, 70, 71, 77, 98, 110, 142, 154, 245, 343, 355, 385, 490, 497, 539, 686, 710, 770, 781, 994, 1078, 1562, 1715, 2485, 2695, 3430, 3479, 3773, 3905, 4970, 5390, 5467, 6958, 7546, 7810, 10934, 17395, 18865, 24353, 27335, 34790, 37730, 38269, 48706, 54670, 76538, 121765, 191345, 243530, 267883, 382690, 535766, 1339415, 2678830]

約数ペア:

[(1, 2678830), (2, 1339415), (5, 535766), (7, 382690), (10, 267883), (11, 243530), (14, 191345), (22, 121765), (35, 76538), (49, 54670), (55, 48706), (70, 38269), (71, 37730), (77, 34790), (98, 27335), (110, 24353), (142, 18865), (154, 17395), (245, 10934), (343, 7810), (355, 7546), (385, 6958), (490, 5467), (497, 5390), (539, 4970), (686, 3905), (710, 3773), (770, 3479), (781, 3430), (994, 2695), (1078, 2485), (1562, 1715)]