20199821260

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1\times {\mathrm{7753}}^1$

素因数の和:7955

約数の個数: 96

約数和(自身を含む): 45958268160

約数和(自身を除く): 25758446900

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 79, 85, 97, 158, 170, 194, 316, 340, 388, 395, 485, 790, 970, 1343, 1580, 1649, 1940, 2686, 3298, 5372, 6596, 6715, 7663, 7753, 8245, 13430, 15326, 15506, 16490, 26860, 30652, 31012, 32980, 38315, 38765, 76630, 77530, 130271, 131801, 153260, 155060, 260542, 263602, 521084, 527204, 612487, 651355, 659005, 752041, 1224974, 1302710, 1318010, 1504082, 2449948, 2605420, 2636020, 3008164, 3062435, 3760205, 6124870, 7520410, 10412279, 12249740, 12784697, 15040820, 20824558, 25569394, 41649116, 51138788, 52061395, 59411239, 63923485, 104122790, 118822478, 127846970, 208245580, 237644956, 255693940, 297056195, 594112390, 1009991063, 1188224780, 2019982126, 4039964252, 5049955315, 10099910630, 20199821260]

約数ペア:

[(1, 20199821260), (2, 10099910630), (4, 5049955315), (5, 4039964252), (10, 2019982126), (17, 1188224780), (20, 1009991063), (34, 594112390), (68, 297056195), (79, 255693940), (85, 237644956), (97, 208245580), (158, 127846970), (170, 118822478), (194, 104122790), (316, 63923485), (340, 59411239), (388, 52061395), (395, 51138788), (485, 41649116), (790, 25569394), (970, 20824558), (1343, 15040820), (1580, 12784697), (1649, 12249740), (1940, 10412279), (2686, 7520410), (3298, 6124870), (5372, 3760205), (6596, 3062435), (6715, 3008164), (7663, 2636020), (7753, 2605420), (8245, 2449948), (13430, 1504082), (15326, 1318010), (15506, 1302710), (16490, 1224974), (26860, 752041), (30652, 659005), (31012, 651355), (32980, 612487), (38315, 527204), (38765, 521084), (76630, 263602), (77530, 260542), (130271, 155060), (131801, 153260)]