20126199440

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{8115403}}^1$

素因数の和:8115447

約数の個数: 40

約数和(自身を含む): 48302884608

約数和(自身を除く): 28176685168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 8115403, 16230806, 32461612, 40577015, 64923224, 81154030, 129846448, 162308060, 251577493, 324616120, 503154986, 649232240, 1006309972, 1257887465, 2012619944, 2515774930, 4025239888, 5031549860, 10063099720, 20126199440]

約数ペア:

[(1, 20126199440), (2, 10063099720), (4, 5031549860), (5, 4025239888), (8, 2515774930), (10, 2012619944), (16, 1257887465), (20, 1006309972), (31, 649232240), (40, 503154986), (62, 324616120), (80, 251577493), (124, 162308060), (155, 129846448), (248, 81154030), (310, 64923224), (496, 40577015), (620, 32461612), (1240, 16230806), (2480, 8115403)]