72129980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{16319}}^1$

素因数の和:16358

約数の個数: 48

約数和(自身を含む): 172730880

約数和(自身を除く): 100600900

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4420, 16319, 32638, 65276, 81595, 163190, 212147, 277423, 326380, 424294, 554846, 848588, 1060735, 1109692, 1387115, 2121470, 2774230, 3606499, 4242940, 5548460, 7212998, 14425996, 18032495, 36064990, 72129980]

約数ペア:

[(1, 72129980), (2, 36064990), (4, 18032495), (5, 14425996), (10, 7212998), (13, 5548460), (17, 4242940), (20, 3606499), (26, 2774230), (34, 2121470), (52, 1387115), (65, 1109692), (68, 1060735), (85, 848588), (130, 554846), (170, 424294), (221, 326380), (260, 277423), (340, 212147), (442, 163190), (884, 81595), (1105, 65276), (2210, 32638), (4420, 16319)]