638510010

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{239}}^1$

素因数の和:420

約数の個数: 128

約数和(自身を含む): 1672704000

約数和(自身を除く): 1034193990

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 38, 43, 57, 86, 95, 109, 114, 129, 190, 215, 218, 239, 258, 285, 327, 430, 478, 545, 570, 645, 654, 717, 817, 1090, 1195, 1290, 1434, 1634, 1635, 2071, 2390, 2451, 3270, 3585, 4085, 4142, 4541, 4687, 4902, 6213, 7170, 8170, 9082, 9374, 10277, 10355, 12255, 12426, 13623, 14061, 20554, 20710, 22705, 23435, 24510, 26051, 27246, 28122, 30831, 31065, 45410, 46870, 51385, 52102, 61662, 62130, 68115, 70305, 78153, 89053, 102770, 130255, 136230, 140610, 154155, 156306, 178106, 195263, 260510, 267159, 308310, 390526, 390765, 445265, 494969, 534318, 585789, 781530, 890530, 976315, 989938, 1120193, 1171578, 1335795, 1484907, 1952630, 2240386, 2474845, 2671590, 2928945, 2969814, 3360579, 4949690, 5600965, 5857890, 6721158, 7424535, 11201930, 14849070, 16802895, 21283667, 33605790, 42567334, 63851001, 106418335, 127702002, 212836670, 319255005, 638510010]

約数ペア:

[(1, 638510010), (2, 319255005), (3, 212836670), (5, 127702002), (6, 106418335), (10, 63851001), (15, 42567334), (19, 33605790), (30, 21283667), (38, 16802895), (43, 14849070), (57, 11201930), (86, 7424535), (95, 6721158), (109, 5857890), (114, 5600965), (129, 4949690), (190, 3360579), (215, 2969814), (218, 2928945), (239, 2671590), (258, 2474845), (285, 2240386), (327, 1952630), (430, 1484907), (478, 1335795), (545, 1171578), (570, 1120193), (645, 989938), (654, 976315), (717, 890530), (817, 781530), (1090, 585789), (1195, 534318), (1290, 494969), (1434, 445265), (1634, 390765), (1635, 390526), (2071, 308310), (2390, 267159), (2451, 260510), (3270, 195263), (3585, 178106), (4085, 156306), (4142, 154155), (4541, 140610), (4687, 136230), (4902, 130255), (6213, 102770), (7170, 89053), (8170, 78153), (9082, 70305), (9374, 68115), (10277, 62130), (10355, 61662), (12255, 52102), (12426, 51385), (13623, 46870), (14061, 45410), (20554, 31065), (20710, 30831), (22705, 28122), (23435, 27246), (24510, 26051)]