19896660

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{15791}}^1$

素因数の和:15813

約数の個数: 72

約数和(自身を含む): 68979456

約数和(自身を除く): 49082796

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 15791, 31582, 47373, 63164, 78955, 94746, 110537, 142119, 157910, 189492, 221074, 236865, 284238, 315820, 331611, 442148, 473730, 552685, 568476, 663222, 710595, 947460, 994833, 1105370, 1326444, 1421190, 1658055, 1989666, 2210740, 2842380, 3316110, 3979332, 4974165, 6632220, 9948330, 19896660]

約数ペア:

[(1, 19896660), (2, 9948330), (3, 6632220), (4, 4974165), (5, 3979332), (6, 3316110), (7, 2842380), (9, 2210740), (10, 1989666), (12, 1658055), (14, 1421190), (15, 1326444), (18, 1105370), (20, 994833), (21, 947460), (28, 710595), (30, 663222), (35, 568476), (36, 552685), (42, 473730), (45, 442148), (60, 331611), (63, 315820), (70, 284238), (84, 236865), (90, 221074), (105, 189492), (126, 157910), (140, 142119), (180, 110537), (210, 94746), (252, 78955), (315, 63164), (420, 47373), (630, 31582), (1260, 15791)]