18973860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{101}}^2$

素因数の和:245

約数の個数: 72

約数和(自身を含む): 55388928

約数和(自身を除く): 36415068

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 93, 101, 124, 155, 186, 202, 303, 310, 372, 404, 465, 505, 606, 620, 930, 1010, 1212, 1515, 1860, 2020, 3030, 3131, 6060, 6262, 9393, 10201, 12524, 15655, 18786, 20402, 30603, 31310, 37572, 40804, 46965, 51005, 61206, 62620, 93930, 102010, 122412, 153015, 187860, 204020, 306030, 316231, 612060, 632462, 948693, 1264924, 1581155, 1897386, 3162310, 3794772, 4743465, 6324620, 9486930, 18973860]

約数ペア:

[(1, 18973860), (2, 9486930), (3, 6324620), (4, 4743465), (5, 3794772), (6, 3162310), (10, 1897386), (12, 1581155), (15, 1264924), (20, 948693), (30, 632462), (31, 612060), (60, 316231), (62, 306030), (93, 204020), (101, 187860), (124, 153015), (155, 122412), (186, 102010), (202, 93930), (303, 62620), (310, 61206), (372, 51005), (404, 46965), (465, 40804), (505, 37572), (606, 31310), (620, 30603), (930, 20402), (1010, 18786), (1212, 15655), (1515, 12524), (1860, 10201), (2020, 9393), (3030, 6262), (3131, 6060)]