638655660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{1847}}^1$

素因数の和:1992

約数の個数: 144

約数和(自身を含む): 2070484416

約数和(自身を除く): 1431828756

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 85, 90, 102, 113, 153, 170, 180, 204, 226, 255, 306, 339, 340, 452, 510, 565, 612, 678, 765, 1017, 1020, 1130, 1356, 1530, 1695, 1847, 1921, 2034, 2260, 3060, 3390, 3694, 3842, 4068, 5085, 5541, 5763, 6780, 7388, 7684, 9235, 9605, 10170, 11082, 11526, 16623, 17289, 18470, 19210, 20340, 22164, 23052, 27705, 28815, 31399, 33246, 34578, 36940, 38420, 55410, 57630, 62798, 66492, 69156, 83115, 86445, 94197, 110820, 115260, 125596, 156995, 166230, 172890, 188394, 208711, 282591, 313990, 332460, 345780, 376788, 417422, 470985, 565182, 626133, 627980, 834844, 941970, 1043555, 1130364, 1252266, 1412955, 1878399, 1883940, 2087110, 2504532, 2825910, 3130665, 3548087, 3756798, 4174220, 5651820, 6261330, 7096174, 7513596, 9391995, 10644261, 12522660, 14192348, 17740435, 18783990, 21288522, 31932783, 35480870, 37567980, 42577044, 53221305, 63865566, 70961740, 106442610, 127731132, 159663915, 212885220, 319327830, 638655660]

約数ペア:

[(1, 638655660), (2, 319327830), (3, 212885220), (4, 159663915), (5, 127731132), (6, 106442610), (9, 70961740), (10, 63865566), (12, 53221305), (15, 42577044), (17, 37567980), (18, 35480870), (20, 31932783), (30, 21288522), (34, 18783990), (36, 17740435), (45, 14192348), (51, 12522660), (60, 10644261), (68, 9391995), (85, 7513596), (90, 7096174), (102, 6261330), (113, 5651820), (153, 4174220), (170, 3756798), (180, 3548087), (204, 3130665), (226, 2825910), (255, 2504532), (306, 2087110), (339, 1883940), (340, 1878399), (452, 1412955), (510, 1252266), (565, 1130364), (612, 1043555), (678, 941970), (765, 834844), (1017, 627980), (1020, 626133), (1130, 565182), (1356, 470985), (1530, 417422), (1695, 376788), (1847, 345780), (1921, 332460), (2034, 313990), (2260, 282591), (3060, 208711), (3390, 188394), (3694, 172890), (3842, 166230), (4068, 156995), (5085, 125596), (5541, 115260), (5763, 110820), (6780, 94197), (7388, 86445), (7684, 83115), (9235, 69156), (9605, 66492), (10170, 62798), (11082, 57630), (11526, 55410), (16623, 38420), (17289, 36940), (18470, 34578), (19210, 33246), (20340, 31399), (22164, 28815), (23052, 27705)]