18969780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:217

約数の個数: 96

約数和(自身を含む): 55496448

約数和(自身を除く): 36526668

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 61, 71, 73, 122, 142, 146, 183, 213, 219, 244, 284, 292, 305, 355, 365, 366, 426, 438, 610, 710, 730, 732, 852, 876, 915, 1065, 1095, 1220, 1420, 1460, 1830, 2130, 2190, 3660, 4260, 4331, 4380, 4453, 5183, 8662, 8906, 10366, 12993, 13359, 15549, 17324, 17812, 20732, 21655, 22265, 25915, 25986, 26718, 31098, 43310, 44530, 51830, 51972, 53436, 62196, 64965, 66795, 77745, 86620, 89060, 103660, 129930, 133590, 155490, 259860, 267180, 310980, 316163, 632326, 948489, 1264652, 1580815, 1896978, 3161630, 3793956, 4742445, 6323260, 9484890, 18969780]

約数ペア:

[(1, 18969780), (2, 9484890), (3, 6323260), (4, 4742445), (5, 3793956), (6, 3161630), (10, 1896978), (12, 1580815), (15, 1264652), (20, 948489), (30, 632326), (60, 316163), (61, 310980), (71, 267180), (73, 259860), (122, 155490), (142, 133590), (146, 129930), (183, 103660), (213, 89060), (219, 86620), (244, 77745), (284, 66795), (292, 64965), (305, 62196), (355, 53436), (365, 51972), (366, 51830), (426, 44530), (438, 43310), (610, 31098), (710, 26718), (730, 25986), (732, 25915), (852, 22265), (876, 21655), (915, 20732), (1065, 17812), (1095, 17324), (1220, 15549), (1420, 13359), (1460, 12993), (1830, 10366), (2130, 8906), (2190, 8662), (3660, 5183), (4260, 4453), (4331, 4380)]