311963940

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{17}}^2\times {\mathrm{1999}}^1$

素因数の和:2051

約数の個数: 144

約数和(自身を含む): 1031520000

約数和(自身を除く): 719556060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 27, 30, 34, 36, 45, 51, 54, 60, 68, 85, 90, 102, 108, 135, 153, 170, 180, 204, 255, 270, 289, 306, 340, 459, 510, 540, 578, 612, 765, 867, 918, 1020, 1156, 1445, 1530, 1734, 1836, 1999, 2295, 2601, 2890, 3060, 3468, 3998, 4335, 4590, 5202, 5780, 5997, 7803, 7996, 8670, 9180, 9995, 10404, 11994, 13005, 15606, 17340, 17991, 19990, 23988, 26010, 29985, 31212, 33983, 35982, 39015, 39980, 52020, 53973, 59970, 67966, 71964, 78030, 89955, 101949, 107946, 119940, 135932, 156060, 169915, 179910, 203898, 215892, 269865, 305847, 339830, 359820, 407796, 509745, 539730, 577711, 611694, 679660, 917541, 1019490, 1079460, 1155422, 1223388, 1529235, 1733133, 1835082, 2038980, 2310844, 2888555, 3058470, 3466266, 3670164, 4587705, 5199399, 5777110, 6116940, 6932532, 8665665, 9175410, 10398798, 11554220, 15598197, 17331330, 18350820, 20797596, 25996995, 31196394, 34662660, 51993990, 62392788, 77990985, 103987980, 155981970, 311963940]

約数ペア:

[(1, 311963940), (2, 155981970), (3, 103987980), (4, 77990985), (5, 62392788), (6, 51993990), (9, 34662660), (10, 31196394), (12, 25996995), (15, 20797596), (17, 18350820), (18, 17331330), (20, 15598197), (27, 11554220), (30, 10398798), (34, 9175410), (36, 8665665), (45, 6932532), (51, 6116940), (54, 5777110), (60, 5199399), (68, 4587705), (85, 3670164), (90, 3466266), (102, 3058470), (108, 2888555), (135, 2310844), (153, 2038980), (170, 1835082), (180, 1733133), (204, 1529235), (255, 1223388), (270, 1155422), (289, 1079460), (306, 1019490), (340, 917541), (459, 679660), (510, 611694), (540, 577711), (578, 539730), (612, 509745), (765, 407796), (867, 359820), (918, 339830), (1020, 305847), (1156, 269865), (1445, 215892), (1530, 203898), (1734, 179910), (1836, 169915), (1999, 156060), (2295, 135932), (2601, 119940), (2890, 107946), (3060, 101949), (3468, 89955), (3998, 78030), (4335, 71964), (4590, 67966), (5202, 59970), (5780, 53973), (5997, 52020), (7803, 39980), (7996, 39015), (8670, 35982), (9180, 33983), (9995, 31212), (10404, 29985), (11994, 26010), (13005, 23988), (15606, 19990), (17340, 17991)]