28555800

素因数分解:

$2^3\times 3^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{523}}^1$

素因数の和:562

約数の個数: 192

約数和(自身を含む): 109159680

約数和(自身を除く): 80603880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 25, 26, 28, 30, 35, 39, 40, 42, 50, 52, 56, 60, 65, 70, 75, 78, 84, 91, 100, 104, 105, 120, 130, 140, 150, 156, 168, 175, 182, 195, 200, 210, 260, 273, 280, 300, 312, 325, 350, 364, 390, 420, 455, 520, 523, 525, 546, 600, 650, 700, 728, 780, 840, 910, 975, 1046, 1050, 1092, 1300, 1365, 1400, 1560, 1569, 1820, 1950, 2092, 2100, 2184, 2275, 2600, 2615, 2730, 3138, 3640, 3661, 3900, 4184, 4200, 4550, 5230, 5460, 6276, 6799, 6825, 7322, 7800, 7845, 9100, 10460, 10920, 10983, 12552, 13075, 13598, 13650, 14644, 15690, 18200, 18305, 20397, 20920, 21966, 26150, 27196, 27300, 29288, 31380, 33995, 36610, 39225, 40794, 43932, 47593, 52300, 54392, 54600, 54915, 62760, 67990, 73220, 78450, 81588, 87864, 91525, 95186, 101985, 104600, 109830, 135980, 142779, 146440, 156900, 163176, 169975, 183050, 190372, 203970, 219660, 237965, 271960, 274575, 285558, 313800, 339950, 366100, 380744, 407940, 439320, 475930, 509925, 549150, 571116, 679900, 713895, 732200, 815880, 951860, 1019850, 1098300, 1142232, 1189825, 1359800, 1427790, 1903720, 2039700, 2196600, 2379650, 2855580, 3569475, 4079400, 4759300, 5711160, 7138950, 9518600, 14277900, 28555800]

約数ペア:

[(1, 28555800), (2, 14277900), (3, 9518600), (4, 7138950), (5, 5711160), (6, 4759300), (7, 4079400), (8, 3569475), (10, 2855580), (12, 2379650), (13, 2196600), (14, 2039700), (15, 1903720), (20, 1427790), (21, 1359800), (24, 1189825), (25, 1142232), (26, 1098300), (28, 1019850), (30, 951860), (35, 815880), (39, 732200), (40, 713895), (42, 679900), (50, 571116), (52, 549150), (56, 509925), (60, 475930), (65, 439320), (70, 407940), (75, 380744), (78, 366100), (84, 339950), (91, 313800), (100, 285558), (104, 274575), (105, 271960), (120, 237965), (130, 219660), (140, 203970), (150, 190372), (156, 183050), (168, 169975), (175, 163176), (182, 156900), (195, 146440), (200, 142779), (210, 135980), (260, 109830), (273, 104600), (280, 101985), (300, 95186), (312, 91525), (325, 87864), (350, 81588), (364, 78450), (390, 73220), (420, 67990), (455, 62760), (520, 54915), (523, 54600), (525, 54392), (546, 52300), (600, 47593), (650, 43932), (700, 40794), (728, 39225), (780, 36610), (840, 33995), (910, 31380), (975, 29288), (1046, 27300), (1050, 27196), (1092, 26150), (1300, 21966), (1365, 20920), (1400, 20397), (1560, 18305), (1569, 18200), (1820, 15690), (1950, 14644), (2092, 13650), (2100, 13598), (2184, 13075), (2275, 12552), (2600, 10983), (2615, 10920), (2730, 10460), (3138, 9100), (3640, 7845), (3661, 7800), (3900, 7322), (4184, 6825), (4200, 6799), (4550, 6276), (5230, 5460)]