81395370

素因数分解:

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

素因数の和:18484

約数の個数: 72

約数和(自身を含む): 246192804

約数和(自身を除く): 164797434

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 49, 63, 70, 90, 98, 105, 126, 147, 210, 245, 294, 315, 441, 490, 630, 735, 882, 1470, 2205, 4410, 18457, 36914, 55371, 92285, 110742, 129199, 166113, 184570, 258398, 276855, 332226, 387597, 553710, 645995, 775194, 830565, 904393, 1162791, 1291990, 1661130, 1808786, 1937985, 2325582, 2713179, 3875970, 4521965, 5426358, 5813955, 8139537, 9043930, 11627910, 13565895, 16279074, 27131790, 40697685, 81395370]

約数ペア:

[(1, 81395370), (2, 40697685), (3, 27131790), (5, 16279074), (6, 13565895), (7, 11627910), (9, 9043930), (10, 8139537), (14, 5813955), (15, 5426358), (18, 4521965), (21, 3875970), (30, 2713179), (35, 2325582), (42, 1937985), (45, 1808786), (49, 1661130), (63, 1291990), (70, 1162791), (90, 904393), (98, 830565), (105, 775194), (126, 645995), (147, 553710), (210, 387597), (245, 332226), (294, 276855), (315, 258398), (441, 184570), (490, 166113), (630, 129199), (735, 110742), (882, 92285), (1470, 55371), (2205, 36914), (4410, 18457)]