18128370

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:136

約数の個数: 128

約数和(自身を含む): 51093504

約数和(自身を除く): 32965134

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 23, 26, 30, 39, 43, 46, 47, 65, 69, 78, 86, 94, 115, 129, 130, 138, 141, 195, 215, 230, 235, 258, 282, 299, 345, 390, 430, 470, 559, 598, 611, 645, 690, 705, 897, 989, 1081, 1118, 1222, 1290, 1410, 1495, 1677, 1794, 1833, 1978, 2021, 2162, 2795, 2967, 2990, 3055, 3243, 3354, 3666, 4042, 4485, 4945, 5405, 5590, 5934, 6063, 6110, 6486, 8385, 8970, 9165, 9890, 10105, 10810, 12126, 12857, 14053, 14835, 16215, 16770, 18330, 20210, 25714, 26273, 28106, 29670, 30315, 32430, 38571, 42159, 46483, 52546, 60630, 64285, 70265, 77142, 78819, 84318, 92966, 128570, 131365, 139449, 140530, 157638, 192855, 210795, 232415, 262730, 278898, 385710, 394095, 421590, 464830, 604279, 697245, 788190, 1208558, 1394490, 1812837, 3021395, 3625674, 6042790, 9064185, 18128370]

約数ペア:

[(1, 18128370), (2, 9064185), (3, 6042790), (5, 3625674), (6, 3021395), (10, 1812837), (13, 1394490), (15, 1208558), (23, 788190), (26, 697245), (30, 604279), (39, 464830), (43, 421590), (46, 394095), (47, 385710), (65, 278898), (69, 262730), (78, 232415), (86, 210795), (94, 192855), (115, 157638), (129, 140530), (130, 139449), (138, 131365), (141, 128570), (195, 92966), (215, 84318), (230, 78819), (235, 77142), (258, 70265), (282, 64285), (299, 60630), (345, 52546), (390, 46483), (430, 42159), (470, 38571), (559, 32430), (598, 30315), (611, 29670), (645, 28106), (690, 26273), (705, 25714), (897, 20210), (989, 18330), (1081, 16770), (1118, 16215), (1222, 14835), (1290, 14053), (1410, 12857), (1495, 12126), (1677, 10810), (1794, 10105), (1833, 9890), (1978, 9165), (2021, 8970), (2162, 8385), (2795, 6486), (2967, 6110), (2990, 6063), (3055, 5934), (3243, 5590), (3354, 5405), (3666, 4945), (4042, 4485)]