28977000

素因数分解:

$2^3\times 3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{743}}^1$

素因数の和:780

約数の個数: 128

約数和(自身を含む): 97493760

約数和(自身を除く): 68516760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 25, 26, 30, 39, 40, 50, 52, 60, 65, 75, 78, 100, 104, 120, 125, 130, 150, 156, 195, 200, 250, 260, 300, 312, 325, 375, 390, 500, 520, 600, 650, 743, 750, 780, 975, 1000, 1300, 1486, 1500, 1560, 1625, 1950, 2229, 2600, 2972, 3000, 3250, 3715, 3900, 4458, 4875, 5944, 6500, 7430, 7800, 8916, 9659, 9750, 11145, 13000, 14860, 17832, 18575, 19318, 19500, 22290, 28977, 29720, 37150, 38636, 39000, 44580, 48295, 55725, 57954, 74300, 77272, 89160, 92875, 96590, 111450, 115908, 144885, 148600, 185750, 193180, 222900, 231816, 241475, 278625, 289770, 371500, 386360, 445800, 482950, 557250, 579540, 724425, 743000, 965900, 1114500, 1159080, 1207375, 1448850, 1931800, 2229000, 2414750, 2897700, 3622125, 4829500, 5795400, 7244250, 9659000, 14488500, 28977000]

約数ペア:

[(1, 28977000), (2, 14488500), (3, 9659000), (4, 7244250), (5, 5795400), (6, 4829500), (8, 3622125), (10, 2897700), (12, 2414750), (13, 2229000), (15, 1931800), (20, 1448850), (24, 1207375), (25, 1159080), (26, 1114500), (30, 965900), (39, 743000), (40, 724425), (50, 579540), (52, 557250), (60, 482950), (65, 445800), (75, 386360), (78, 371500), (100, 289770), (104, 278625), (120, 241475), (125, 231816), (130, 222900), (150, 193180), (156, 185750), (195, 148600), (200, 144885), (250, 115908), (260, 111450), (300, 96590), (312, 92875), (325, 89160), (375, 77272), (390, 74300), (500, 57954), (520, 55725), (600, 48295), (650, 44580), (743, 39000), (750, 38636), (780, 37150), (975, 29720), (1000, 28977), (1300, 22290), (1486, 19500), (1500, 19318), (1560, 18575), (1625, 17832), (1950, 14860), (2229, 13000), (2600, 11145), (2972, 9750), (3000, 9659), (3250, 8916), (3715, 7800), (3900, 7430), (4458, 6500), (4875, 5944)]