28698228

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^2\times {\mathrm{53}}^1\times {\mathrm{89}}^1$

素因数の和:178

約数の個数: 108

約数和(自身を含む): 80933580

約数和(自身を除く): 52235352

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 53, 78, 89, 106, 117, 156, 159, 169, 178, 212, 234, 267, 318, 338, 356, 468, 477, 507, 534, 636, 676, 689, 801, 954, 1014, 1068, 1157, 1378, 1521, 1602, 1908, 2028, 2067, 2314, 2756, 3042, 3204, 3471, 4134, 4628, 4717, 6084, 6201, 6942, 8268, 8957, 9434, 10413, 12402, 13884, 14151, 15041, 17914, 18868, 20826, 24804, 26871, 28302, 30082, 35828, 41652, 42453, 45123, 53742, 56604, 60164, 61321, 80613, 84906, 90246, 107484, 122642, 135369, 161226, 169812, 180492, 183963, 245284, 270738, 322452, 367926, 541476, 551889, 735852, 797173, 1103778, 1594346, 2207556, 2391519, 3188692, 4783038, 7174557, 9566076, 14349114, 28698228]

約数ペア:

[(1, 28698228), (2, 14349114), (3, 9566076), (4, 7174557), (6, 4783038), (9, 3188692), (12, 2391519), (13, 2207556), (18, 1594346), (26, 1103778), (36, 797173), (39, 735852), (52, 551889), (53, 541476), (78, 367926), (89, 322452), (106, 270738), (117, 245284), (156, 183963), (159, 180492), (169, 169812), (178, 161226), (212, 135369), (234, 122642), (267, 107484), (318, 90246), (338, 84906), (356, 80613), (468, 61321), (477, 60164), (507, 56604), (534, 53742), (636, 45123), (676, 42453), (689, 41652), (801, 35828), (954, 30082), (1014, 28302), (1068, 26871), (1157, 24804), (1378, 20826), (1521, 18868), (1602, 17914), (1908, 15041), (2028, 14151), (2067, 13884), (2314, 12402), (2756, 10413), (3042, 9434), (3204, 8957), (3471, 8268), (4134, 6942), (4628, 6201), (4717, 6084)]