17939220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{211}}^1$

素因数の和:345

約数の個数: 96

約数和(自身を含む): 54848640

約数和(自身を除く): 36909420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 109, 130, 156, 195, 211, 218, 260, 327, 390, 422, 436, 545, 633, 654, 780, 844, 1055, 1090, 1266, 1308, 1417, 1635, 2110, 2180, 2532, 2743, 2834, 3165, 3270, 4220, 4251, 5486, 5668, 6330, 6540, 7085, 8229, 8502, 10972, 12660, 13715, 14170, 16458, 17004, 21255, 22999, 27430, 28340, 32916, 41145, 42510, 45998, 54860, 68997, 82290, 85020, 91996, 114995, 137994, 164580, 229990, 275988, 298987, 344985, 459980, 597974, 689970, 896961, 1195948, 1379940, 1494935, 1793922, 2989870, 3587844, 4484805, 5979740, 8969610, 17939220]

約数ペア:

[(1, 17939220), (2, 8969610), (3, 5979740), (4, 4484805), (5, 3587844), (6, 2989870), (10, 1793922), (12, 1494935), (13, 1379940), (15, 1195948), (20, 896961), (26, 689970), (30, 597974), (39, 459980), (52, 344985), (60, 298987), (65, 275988), (78, 229990), (109, 164580), (130, 137994), (156, 114995), (195, 91996), (211, 85020), (218, 82290), (260, 68997), (327, 54860), (390, 45998), (422, 42510), (436, 41145), (545, 32916), (633, 28340), (654, 27430), (780, 22999), (844, 21255), (1055, 17004), (1090, 16458), (1266, 14170), (1308, 13715), (1417, 12660), (1635, 10972), (2110, 8502), (2180, 8229), (2532, 7085), (2743, 6540), (2834, 6330), (3165, 5668), (3270, 5486), (4220, 4251)]