18828780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{191}}^1$

素因数の和:287

約数の個数: 96

約数和(自身を含む): 55738368

約数和(自身を除く): 36909588

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 53, 60, 62, 93, 106, 124, 155, 159, 186, 191, 212, 265, 310, 318, 372, 382, 465, 530, 573, 620, 636, 764, 795, 930, 955, 1060, 1146, 1590, 1643, 1860, 1910, 2292, 2865, 3180, 3286, 3820, 4929, 5730, 5921, 6572, 8215, 9858, 10123, 11460, 11842, 16430, 17763, 19716, 20246, 23684, 24645, 29605, 30369, 32860, 35526, 40492, 49290, 50615, 59210, 60738, 71052, 88815, 98580, 101230, 118420, 121476, 151845, 177630, 202460, 303690, 313813, 355260, 607380, 627626, 941439, 1255252, 1569065, 1882878, 3138130, 3765756, 4707195, 6276260, 9414390, 18828780]

約数ペア:

[(1, 18828780), (2, 9414390), (3, 6276260), (4, 4707195), (5, 3765756), (6, 3138130), (10, 1882878), (12, 1569065), (15, 1255252), (20, 941439), (30, 627626), (31, 607380), (53, 355260), (60, 313813), (62, 303690), (93, 202460), (106, 177630), (124, 151845), (155, 121476), (159, 118420), (186, 101230), (191, 98580), (212, 88815), (265, 71052), (310, 60738), (318, 59210), (372, 50615), (382, 49290), (465, 40492), (530, 35526), (573, 32860), (620, 30369), (636, 29605), (764, 24645), (795, 23684), (930, 20246), (955, 19716), (1060, 17763), (1146, 16430), (1590, 11842), (1643, 11460), (1860, 10123), (1910, 9858), (2292, 8215), (2865, 6572), (3180, 5921), (3286, 5730), (3820, 4929)]