257838360

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{8699}}^1$

素因数の和:8745

約数の個数: 128

約数和(自身を含む): 876960000

約数和(自身を除く): 619121640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 19, 20, 24, 26, 30, 38, 39, 40, 52, 57, 60, 65, 76, 78, 95, 104, 114, 120, 130, 152, 156, 190, 195, 228, 247, 260, 285, 312, 380, 390, 456, 494, 520, 570, 741, 760, 780, 988, 1140, 1235, 1482, 1560, 1976, 2280, 2470, 2964, 3705, 4940, 5928, 7410, 8699, 9880, 14820, 17398, 26097, 29640, 34796, 43495, 52194, 69592, 86990, 104388, 113087, 130485, 165281, 173980, 208776, 226174, 260970, 330562, 339261, 347960, 452348, 495843, 521940, 565435, 661124, 678522, 826405, 904696, 991686, 1043880, 1130870, 1322248, 1357044, 1652810, 1696305, 1983372, 2148653, 2261740, 2479215, 2714088, 3305620, 3392610, 3966744, 4297306, 4523480, 4958430, 6445959, 6611240, 6785220, 8594612, 9916860, 10743265, 12891918, 13570440, 17189224, 19833720, 21486530, 25783836, 32229795, 42973060, 51567672, 64459590, 85946120, 128919180, 257838360]

約数ペア:

[(1, 257838360), (2, 128919180), (3, 85946120), (4, 64459590), (5, 51567672), (6, 42973060), (8, 32229795), (10, 25783836), (12, 21486530), (13, 19833720), (15, 17189224), (19, 13570440), (20, 12891918), (24, 10743265), (26, 9916860), (30, 8594612), (38, 6785220), (39, 6611240), (40, 6445959), (52, 4958430), (57, 4523480), (60, 4297306), (65, 3966744), (76, 3392610), (78, 3305620), (95, 2714088), (104, 2479215), (114, 2261740), (120, 2148653), (130, 1983372), (152, 1696305), (156, 1652810), (190, 1357044), (195, 1322248), (228, 1130870), (247, 1043880), (260, 991686), (285, 904696), (312, 826405), (380, 678522), (390, 661124), (456, 565435), (494, 521940), (520, 495843), (570, 452348), (741, 347960), (760, 339261), (780, 330562), (988, 260970), (1140, 226174), (1235, 208776), (1482, 173980), (1560, 165281), (1976, 130485), (2280, 113087), (2470, 104388), (2964, 86990), (3705, 69592), (4940, 52194), (5928, 43495), (7410, 34796), (8699, 29640), (9880, 26097), (14820, 17398)]