72407240

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1\times {\mathrm{181}}^1$

素因数の和:402

約数の個数: 64

約数和(自身を含む): 167272560

約数和(自身を除く): 94865320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 137, 146, 181, 274, 292, 362, 365, 548, 584, 685, 724, 730, 905, 1096, 1370, 1448, 1460, 1810, 2740, 2920, 3620, 5480, 7240, 10001, 13213, 20002, 24797, 26426, 40004, 49594, 50005, 52852, 66065, 80008, 99188, 100010, 105704, 123985, 132130, 198376, 200020, 247970, 264260, 400040, 495940, 528520, 991880, 1810181, 3620362, 7240724, 9050905, 14481448, 18101810, 36203620, 72407240]

約数ペア:

[(1, 72407240), (2, 36203620), (4, 18101810), (5, 14481448), (8, 9050905), (10, 7240724), (20, 3620362), (40, 1810181), (73, 991880), (137, 528520), (146, 495940), (181, 400040), (274, 264260), (292, 247970), (362, 200020), (365, 198376), (548, 132130), (584, 123985), (685, 105704), (724, 100010), (730, 99188), (905, 80008), (1096, 66065), (1370, 52852), (1448, 50005), (1460, 49594), (1810, 40004), (2740, 26426), (2920, 24797), (3620, 20002), (5480, 13213), (7240, 10001)]