19867380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{25471}}^1$

素因数の和:25496

約数の個数: 48

約数和(自身を含む): 59910144

約数和(自身を除く): 40042764

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 25471, 50942, 76413, 101884, 127355, 152826, 254710, 305652, 331123, 382065, 509420, 662246, 764130, 993369, 1324492, 1528260, 1655615, 1986738, 3311230, 3973476, 4966845, 6622460, 9933690, 19867380]

約数ペア:

[(1, 19867380), (2, 9933690), (3, 6622460), (4, 4966845), (5, 3973476), (6, 3311230), (10, 1986738), (12, 1655615), (13, 1528260), (15, 1324492), (20, 993369), (26, 764130), (30, 662246), (39, 509420), (52, 382065), (60, 331123), (65, 305652), (78, 254710), (130, 152826), (156, 127355), (195, 101884), (260, 76413), (390, 50942), (780, 25471)]