688715560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^3\times {\mathrm{17}}^1\times {\mathrm{461}}^1$

素因数の和:528

約数の個数: 128

約数和(自身を含む): 1781287200

約数和(自身を除く): 1092571640

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 104, 130, 136, 169, 170, 221, 260, 338, 340, 442, 461, 520, 676, 680, 845, 884, 922, 1105, 1352, 1690, 1768, 1844, 2197, 2210, 2305, 2873, 3380, 3688, 4394, 4420, 4610, 5746, 5993, 6760, 7837, 8788, 8840, 9220, 10985, 11492, 11986, 14365, 15674, 17576, 18440, 21970, 22984, 23972, 28730, 29965, 31348, 37349, 39185, 43940, 47944, 57460, 59930, 62696, 74698, 77909, 78370, 87880, 101881, 114920, 119860, 149396, 155818, 156740, 186745, 203762, 239720, 298792, 311636, 313480, 373490, 389545, 407524, 509405, 623272, 746980, 779090, 815048, 1012817, 1018810, 1324453, 1493960, 1558180, 2025634, 2037620, 2648906, 3116360, 4051268, 4075240, 5064085, 5297812, 6622265, 8102536, 10128170, 10595624, 13244530, 17217889, 20256340, 26489060, 34435778, 40512680, 52978120, 68871556, 86089445, 137743112, 172178890, 344357780, 688715560]

約数ペア:

[(1, 688715560), (2, 344357780), (4, 172178890), (5, 137743112), (8, 86089445), (10, 68871556), (13, 52978120), (17, 40512680), (20, 34435778), (26, 26489060), (34, 20256340), (40, 17217889), (52, 13244530), (65, 10595624), (68, 10128170), (85, 8102536), (104, 6622265), (130, 5297812), (136, 5064085), (169, 4075240), (170, 4051268), (221, 3116360), (260, 2648906), (338, 2037620), (340, 2025634), (442, 1558180), (461, 1493960), (520, 1324453), (676, 1018810), (680, 1012817), (845, 815048), (884, 779090), (922, 746980), (1105, 623272), (1352, 509405), (1690, 407524), (1768, 389545), (1844, 373490), (2197, 313480), (2210, 311636), (2305, 298792), (2873, 239720), (3380, 203762), (3688, 186745), (4394, 156740), (4420, 155818), (4610, 149396), (5746, 119860), (5993, 114920), (6760, 101881), (7837, 87880), (8788, 78370), (8840, 77909), (9220, 74698), (10985, 62696), (11492, 59930), (11986, 57460), (14365, 47944), (15674, 43940), (17576, 39185), (18440, 37349), (21970, 31348), (22984, 29965), (23972, 28730)]