28639800

素因数分解:

$2^3\times 3^2\times 5^2\times 7^1\times {\mathrm{2273}}^1$

素因数の和:2302

約数の個数: 144

約数和(自身を含む): 109970640

約数和(自身を除く): 81330840

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 25, 28, 30, 35, 36, 40, 42, 45, 50, 56, 60, 63, 70, 72, 75, 84, 90, 100, 105, 120, 126, 140, 150, 168, 175, 180, 200, 210, 225, 252, 280, 300, 315, 350, 360, 420, 450, 504, 525, 600, 630, 700, 840, 900, 1050, 1260, 1400, 1575, 1800, 2100, 2273, 2520, 3150, 4200, 4546, 6300, 6819, 9092, 11365, 12600, 13638, 15911, 18184, 20457, 22730, 27276, 31822, 34095, 40914, 45460, 47733, 54552, 56825, 63644, 68190, 79555, 81828, 90920, 95466, 102285, 113650, 127288, 136380, 143199, 159110, 163656, 170475, 190932, 204570, 227300, 238665, 272760, 286398, 318220, 340950, 381864, 397775, 409140, 454600, 477330, 511425, 572796, 636440, 681900, 715995, 795550, 818280, 954660, 1022850, 1145592, 1193325, 1363800, 1431990, 1591100, 1909320, 2045700, 2386650, 2863980, 3182200, 3579975, 4091400, 4773300, 5727960, 7159950, 9546600, 14319900, 28639800]

約数ペア:

[(1, 28639800), (2, 14319900), (3, 9546600), (4, 7159950), (5, 5727960), (6, 4773300), (7, 4091400), (8, 3579975), (9, 3182200), (10, 2863980), (12, 2386650), (14, 2045700), (15, 1909320), (18, 1591100), (20, 1431990), (21, 1363800), (24, 1193325), (25, 1145592), (28, 1022850), (30, 954660), (35, 818280), (36, 795550), (40, 715995), (42, 681900), (45, 636440), (50, 572796), (56, 511425), (60, 477330), (63, 454600), (70, 409140), (72, 397775), (75, 381864), (84, 340950), (90, 318220), (100, 286398), (105, 272760), (120, 238665), (126, 227300), (140, 204570), (150, 190932), (168, 170475), (175, 163656), (180, 159110), (200, 143199), (210, 136380), (225, 127288), (252, 113650), (280, 102285), (300, 95466), (315, 90920), (350, 81828), (360, 79555), (420, 68190), (450, 63644), (504, 56825), (525, 54552), (600, 47733), (630, 45460), (700, 40914), (840, 34095), (900, 31822), (1050, 27276), (1260, 22730), (1400, 20457), (1575, 18184), (1800, 15911), (2100, 13638), (2273, 12600), (2520, 11365), (3150, 9092), (4200, 6819), (4546, 6300)]