18985020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{173}}^1$

素因数の和:275

約数の個数: 96

約数和(自身を含む): 56125440

約数和(自身を除く): 37140420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 59, 60, 62, 93, 118, 124, 155, 173, 177, 186, 236, 295, 310, 346, 354, 372, 465, 519, 590, 620, 692, 708, 865, 885, 930, 1038, 1180, 1730, 1770, 1829, 1860, 2076, 2595, 3460, 3540, 3658, 5190, 5363, 5487, 7316, 9145, 10207, 10380, 10726, 10974, 16089, 18290, 20414, 21452, 21948, 26815, 27435, 30621, 32178, 36580, 40828, 51035, 53630, 54870, 61242, 64356, 80445, 102070, 107260, 109740, 122484, 153105, 160890, 204140, 306210, 316417, 321780, 612420, 632834, 949251, 1265668, 1582085, 1898502, 3164170, 3797004, 4746255, 6328340, 9492510, 18985020]

約数ペア:

[(1, 18985020), (2, 9492510), (3, 6328340), (4, 4746255), (5, 3797004), (6, 3164170), (10, 1898502), (12, 1582085), (15, 1265668), (20, 949251), (30, 632834), (31, 612420), (59, 321780), (60, 316417), (62, 306210), (93, 204140), (118, 160890), (124, 153105), (155, 122484), (173, 109740), (177, 107260), (186, 102070), (236, 80445), (295, 64356), (310, 61242), (346, 54870), (354, 53630), (372, 51035), (465, 40828), (519, 36580), (590, 32178), (620, 30621), (692, 27435), (708, 26815), (865, 21948), (885, 21452), (930, 20414), (1038, 18290), (1180, 16089), (1730, 10974), (1770, 10726), (1829, 10380), (1860, 10207), (2076, 9145), (2595, 7316), (3460, 5487), (3540, 5363), (3658, 5190)]