18619380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{109}}^1$

素因数の和:210

約数の個数: 144

約数和(自身を含む): 62222160

約数和(自身を除く): 43602780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 73, 78, 90, 109, 117, 130, 146, 156, 180, 195, 218, 219, 234, 260, 292, 327, 365, 390, 436, 438, 468, 545, 585, 654, 657, 730, 780, 876, 949, 981, 1090, 1095, 1170, 1308, 1314, 1417, 1460, 1635, 1898, 1962, 2180, 2190, 2340, 2628, 2834, 2847, 3270, 3285, 3796, 3924, 4251, 4380, 4745, 4905, 5668, 5694, 6540, 6570, 7085, 7957, 8502, 8541, 9490, 9810, 11388, 12753, 13140, 14170, 14235, 15914, 17004, 17082, 18980, 19620, 21255, 23871, 25506, 28340, 28470, 31828, 34164, 39785, 42510, 42705, 47742, 51012, 56940, 63765, 71613, 79570, 85020, 85410, 95484, 103441, 119355, 127530, 143226, 159140, 170820, 206882, 238710, 255060, 286452, 310323, 358065, 413764, 477420, 517205, 620646, 716130, 930969, 1034410, 1241292, 1432260, 1551615, 1861938, 2068820, 3103230, 3723876, 4654845, 6206460, 9309690, 18619380]

約数ペア:

[(1, 18619380), (2, 9309690), (3, 6206460), (4, 4654845), (5, 3723876), (6, 3103230), (9, 2068820), (10, 1861938), (12, 1551615), (13, 1432260), (15, 1241292), (18, 1034410), (20, 930969), (26, 716130), (30, 620646), (36, 517205), (39, 477420), (45, 413764), (52, 358065), (60, 310323), (65, 286452), (73, 255060), (78, 238710), (90, 206882), (109, 170820), (117, 159140), (130, 143226), (146, 127530), (156, 119355), (180, 103441), (195, 95484), (218, 85410), (219, 85020), (234, 79570), (260, 71613), (292, 63765), (327, 56940), (365, 51012), (390, 47742), (436, 42705), (438, 42510), (468, 39785), (545, 34164), (585, 31828), (654, 28470), (657, 28340), (730, 25506), (780, 23871), (876, 21255), (949, 19620), (981, 18980), (1090, 17082), (1095, 17004), (1170, 15914), (1308, 14235), (1314, 14170), (1417, 13140), (1460, 12753), (1635, 11388), (1898, 9810), (1962, 9490), (2180, 8541), (2190, 8502), (2340, 7957), (2628, 7085), (2834, 6570), (2847, 6540), (3270, 5694), (3285, 5668), (3796, 4905), (3924, 4745), (4251, 4380)]