20584980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{463}}^1$

素因数の和:510

約数の個数: 144

約数和(自身を含む): 70936320

約数和(自身を除く): 50351340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 19, 20, 26, 30, 36, 38, 39, 45, 52, 57, 60, 65, 76, 78, 90, 95, 114, 117, 130, 156, 171, 180, 190, 195, 228, 234, 247, 260, 285, 342, 380, 390, 463, 468, 494, 570, 585, 684, 741, 780, 855, 926, 988, 1140, 1170, 1235, 1389, 1482, 1710, 1852, 2223, 2315, 2340, 2470, 2778, 2964, 3420, 3705, 4167, 4446, 4630, 4940, 5556, 6019, 6945, 7410, 8334, 8797, 8892, 9260, 11115, 12038, 13890, 14820, 16668, 17594, 18057, 20835, 22230, 24076, 26391, 27780, 30095, 35188, 36114, 41670, 43985, 44460, 52782, 54171, 60190, 72228, 79173, 83340, 87970, 90285, 105564, 108342, 114361, 120380, 131955, 158346, 175940, 180570, 216684, 228722, 263910, 270855, 316692, 343083, 361140, 395865, 457444, 527820, 541710, 571805, 686166, 791730, 1029249, 1083420, 1143610, 1372332, 1583460, 1715415, 2058498, 2287220, 3430830, 4116996, 5146245, 6861660, 10292490, 20584980]

約数ペア:

[(1, 20584980), (2, 10292490), (3, 6861660), (4, 5146245), (5, 4116996), (6, 3430830), (9, 2287220), (10, 2058498), (12, 1715415), (13, 1583460), (15, 1372332), (18, 1143610), (19, 1083420), (20, 1029249), (26, 791730), (30, 686166), (36, 571805), (38, 541710), (39, 527820), (45, 457444), (52, 395865), (57, 361140), (60, 343083), (65, 316692), (76, 270855), (78, 263910), (90, 228722), (95, 216684), (114, 180570), (117, 175940), (130, 158346), (156, 131955), (171, 120380), (180, 114361), (190, 108342), (195, 105564), (228, 90285), (234, 87970), (247, 83340), (260, 79173), (285, 72228), (342, 60190), (380, 54171), (390, 52782), (463, 44460), (468, 43985), (494, 41670), (570, 36114), (585, 35188), (684, 30095), (741, 27780), (780, 26391), (855, 24076), (926, 22230), (988, 20835), (1140, 18057), (1170, 17594), (1235, 16668), (1389, 14820), (1482, 13890), (1710, 12038), (1852, 11115), (2223, 9260), (2315, 8892), (2340, 8797), (2470, 8334), (2778, 7410), (2964, 6945), (3420, 6019), (3705, 5556), (4167, 4940), (4446, 4630)]