21306720

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{44389}}^1$

素因数の和:44407

約数の個数: 48

約数和(自身を含む): 67117680

約数和(自身を除く): 45810960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480, 44389, 88778, 133167, 177556, 221945, 266334, 355112, 443890, 532668, 665835, 710224, 887780, 1065336, 1331670, 1420448, 1775560, 2130672, 2663340, 3551120, 4261344, 5326680, 7102240, 10653360, 21306720]

約数ペア:

[(1, 21306720), (2, 10653360), (3, 7102240), (4, 5326680), (5, 4261344), (6, 3551120), (8, 2663340), (10, 2130672), (12, 1775560), (15, 1420448), (16, 1331670), (20, 1065336), (24, 887780), (30, 710224), (32, 665835), (40, 532668), (48, 443890), (60, 355112), (80, 266334), (96, 221945), (120, 177556), (160, 133167), (240, 88778), (480, 44389)]