25290305680

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{978727}}^1$

素因数の和:978776

約数の個数: 80

約数和(自身を含む): 65535626880

約数和(自身を除く): 40245321200

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 34, 38, 40, 68, 76, 80, 85, 95, 136, 152, 170, 190, 272, 304, 323, 340, 380, 646, 680, 760, 1292, 1360, 1520, 1615, 2584, 3230, 5168, 6460, 12920, 25840, 978727, 1957454, 3914908, 4893635, 7829816, 9787270, 15659632, 16638359, 18595813, 19574540, 33276718, 37191626, 39149080, 66553436, 74383252, 78298160, 83191795, 92979065, 133106872, 148766504, 166383590, 185958130, 266213744, 297533008, 316128821, 332767180, 371916260, 632257642, 665534360, 743832520, 1264515284, 1331068720, 1487665040, 1580644105, 2529030568, 3161288210, 5058061136, 6322576420, 12645152840, 25290305680]

約数ペア:

[(1, 25290305680), (2, 12645152840), (4, 6322576420), (5, 5058061136), (8, 3161288210), (10, 2529030568), (16, 1580644105), (17, 1487665040), (19, 1331068720), (20, 1264515284), (34, 743832520), (38, 665534360), (40, 632257642), (68, 371916260), (76, 332767180), (80, 316128821), (85, 297533008), (95, 266213744), (136, 185958130), (152, 166383590), (170, 148766504), (190, 133106872), (272, 92979065), (304, 83191795), (323, 78298160), (340, 74383252), (380, 66553436), (646, 39149080), (680, 37191626), (760, 33276718), (1292, 19574540), (1360, 18595813), (1520, 16638359), (1615, 15659632), (2584, 9787270), (3230, 7829816), (5168, 4893635), (6460, 3914908), (12920, 1957454), (25840, 978727)]