399979360

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{7331}}^1$

素因数の和:7388

約数の個数: 96

約数和(自身を含む): 1064254464

約数和(自身を除く): 664275104

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 32, 40, 44, 55, 62, 80, 88, 110, 124, 155, 160, 176, 220, 248, 310, 341, 352, 440, 496, 620, 682, 880, 992, 1240, 1364, 1705, 1760, 2480, 2728, 3410, 4960, 5456, 6820, 7331, 10912, 13640, 14662, 27280, 29324, 36655, 54560, 58648, 73310, 80641, 117296, 146620, 161282, 227261, 234592, 293240, 322564, 403205, 454522, 586480, 645128, 806410, 909044, 1136305, 1172960, 1290256, 1612820, 1818088, 2272610, 2499871, 2580512, 3225640, 3636176, 4545220, 4999742, 6451280, 7272352, 9090440, 9999484, 12499355, 12902560, 18180880, 19998968, 24998710, 36361760, 39997936, 49997420, 79995872, 99994840, 199989680, 399979360]

約数ペア:

[(1, 399979360), (2, 199989680), (4, 99994840), (5, 79995872), (8, 49997420), (10, 39997936), (11, 36361760), (16, 24998710), (20, 19998968), (22, 18180880), (31, 12902560), (32, 12499355), (40, 9999484), (44, 9090440), (55, 7272352), (62, 6451280), (80, 4999742), (88, 4545220), (110, 3636176), (124, 3225640), (155, 2580512), (160, 2499871), (176, 2272610), (220, 1818088), (248, 1612820), (310, 1290256), (341, 1172960), (352, 1136305), (440, 909044), (496, 806410), (620, 645128), (682, 586480), (880, 454522), (992, 403205), (1240, 322564), (1364, 293240), (1705, 234592), (1760, 227261), (2480, 161282), (2728, 146620), (3410, 117296), (4960, 80641), (5456, 73310), (6820, 58648), (7331, 54560), (10912, 36655), (13640, 29324), (14662, 27280)]