20283900

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{743}}^1$

素因数の和:780

約数の個数: 144

約数和(自身を含む): 72328704

約数和(自身を除く): 52044804

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 25, 26, 28, 30, 35, 39, 42, 50, 52, 60, 65, 70, 75, 78, 84, 91, 100, 105, 130, 140, 150, 156, 175, 182, 195, 210, 260, 273, 300, 325, 350, 364, 390, 420, 455, 525, 546, 650, 700, 743, 780, 910, 975, 1050, 1092, 1300, 1365, 1486, 1820, 1950, 2100, 2229, 2275, 2730, 2972, 3715, 3900, 4458, 4550, 5201, 5460, 6825, 7430, 8916, 9100, 9659, 10402, 11145, 13650, 14860, 15603, 18575, 19318, 20804, 22290, 26005, 27300, 28977, 31206, 37150, 38636, 44580, 48295, 52010, 55725, 57954, 62412, 67613, 74300, 78015, 96590, 104020, 111450, 115908, 130025, 135226, 144885, 156030, 193180, 202839, 222900, 241475, 260050, 270452, 289770, 312060, 338065, 390075, 405678, 482950, 520100, 579540, 676130, 724425, 780150, 811356, 965900, 1014195, 1352260, 1448850, 1560300, 1690325, 2028390, 2897700, 3380650, 4056780, 5070975, 6761300, 10141950, 20283900]

約数ペア:

[(1, 20283900), (2, 10141950), (3, 6761300), (4, 5070975), (5, 4056780), (6, 3380650), (7, 2897700), (10, 2028390), (12, 1690325), (13, 1560300), (14, 1448850), (15, 1352260), (20, 1014195), (21, 965900), (25, 811356), (26, 780150), (28, 724425), (30, 676130), (35, 579540), (39, 520100), (42, 482950), (50, 405678), (52, 390075), (60, 338065), (65, 312060), (70, 289770), (75, 270452), (78, 260050), (84, 241475), (91, 222900), (100, 202839), (105, 193180), (130, 156030), (140, 144885), (150, 135226), (156, 130025), (175, 115908), (182, 111450), (195, 104020), (210, 96590), (260, 78015), (273, 74300), (300, 67613), (325, 62412), (350, 57954), (364, 55725), (390, 52010), (420, 48295), (455, 44580), (525, 38636), (546, 37150), (650, 31206), (700, 28977), (743, 27300), (780, 26005), (910, 22290), (975, 20804), (1050, 19318), (1092, 18575), (1300, 15603), (1365, 14860), (1486, 13650), (1820, 11145), (1950, 10402), (2100, 9659), (2229, 9100), (2275, 8916), (2730, 7430), (2972, 6825), (3715, 5460), (3900, 5201), (4458, 4550)]