821705640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{18457}}^1$

素因数の和:18531

約数の個数: 128

約数和(自身を含む): 2870588160

約数和(自身を除く): 2048882520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 53, 56, 60, 70, 84, 105, 106, 120, 140, 159, 168, 210, 212, 265, 280, 318, 371, 420, 424, 530, 636, 742, 795, 840, 1060, 1113, 1272, 1484, 1590, 1855, 2120, 2226, 2968, 3180, 3710, 4452, 5565, 6360, 7420, 8904, 11130, 14840, 18457, 22260, 36914, 44520, 55371, 73828, 92285, 110742, 129199, 147656, 184570, 221484, 258398, 276855, 369140, 387597, 442968, 516796, 553710, 645995, 738280, 775194, 978221, 1033592, 1107420, 1291990, 1550388, 1937985, 1956442, 2214840, 2583980, 2934663, 3100776, 3875970, 3912884, 4891105, 5167960, 5869326, 6847547, 7751940, 7825768, 9782210, 11738652, 13695094, 14673315, 15503880, 19564420, 20542641, 23477304, 27390188, 29346630, 34237735, 39128840, 41085282, 54780376, 58693260, 68475470, 82170564, 102713205, 117386520, 136950940, 164341128, 205426410, 273901880, 410852820, 821705640]

約数ペア:

[(1, 821705640), (2, 410852820), (3, 273901880), (4, 205426410), (5, 164341128), (6, 136950940), (7, 117386520), (8, 102713205), (10, 82170564), (12, 68475470), (14, 58693260), (15, 54780376), (20, 41085282), (21, 39128840), (24, 34237735), (28, 29346630), (30, 27390188), (35, 23477304), (40, 20542641), (42, 19564420), (53, 15503880), (56, 14673315), (60, 13695094), (70, 11738652), (84, 9782210), (105, 7825768), (106, 7751940), (120, 6847547), (140, 5869326), (159, 5167960), (168, 4891105), (210, 3912884), (212, 3875970), (265, 3100776), (280, 2934663), (318, 2583980), (371, 2214840), (420, 1956442), (424, 1937985), (530, 1550388), (636, 1291990), (742, 1107420), (795, 1033592), (840, 978221), (1060, 775194), (1113, 738280), (1272, 645995), (1484, 553710), (1590, 516796), (1855, 442968), (2120, 387597), (2226, 369140), (2968, 276855), (3180, 258398), (3710, 221484), (4452, 184570), (5565, 147656), (6360, 129199), (7420, 110742), (8904, 92285), (11130, 73828), (14840, 55371), (18457, 44520), (22260, 36914)]