398289460

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{73}}^2\times {\mathrm{101}}^1$

素因数の和:293

約数の個数: 72

約数和(自身を含む): 879565176

約数和(自身を除く): 481275716

約数列:

[1, 2, 4, 5, 10, 20, 37, 73, 74, 101, 146, 148, 185, 202, 292, 365, 370, 404, 505, 730, 740, 1010, 1460, 2020, 2701, 3737, 5329, 5402, 7373, 7474, 10658, 10804, 13505, 14746, 14948, 18685, 21316, 26645, 27010, 29492, 36865, 37370, 53290, 54020, 73730, 74740, 106580, 147460, 197173, 272801, 394346, 538229, 545602, 788692, 985865, 1076458, 1091204, 1364005, 1971730, 2152916, 2691145, 2728010, 3943460, 5382290, 5456020, 10764580, 19914473, 39828946, 79657892, 99572365, 199144730, 398289460]

約数ペア:

[(1, 398289460), (2, 199144730), (4, 99572365), (5, 79657892), (10, 39828946), (20, 19914473), (37, 10764580), (73, 5456020), (74, 5382290), (101, 3943460), (146, 2728010), (148, 2691145), (185, 2152916), (202, 1971730), (292, 1364005), (365, 1091204), (370, 1076458), (404, 985865), (505, 788692), (730, 545602), (740, 538229), (1010, 394346), (1460, 272801), (2020, 197173), (2701, 147460), (3737, 106580), (5329, 74740), (5402, 73730), (7373, 54020), (7474, 53290), (10658, 37370), (10804, 36865), (13505, 29492), (14746, 27010), (14948, 26645), (18685, 21316)]