20819400

素因数分解:

$2^3\times 3^1\times 5^2\times 7^1\times {\mathrm{4957}}^1$

素因数の和:4983

約数の個数: 96

約数和(自身を含む): 73775040

約数和(自身を除く): 52955640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 25, 28, 30, 35, 40, 42, 50, 56, 60, 70, 75, 84, 100, 105, 120, 140, 150, 168, 175, 200, 210, 280, 300, 350, 420, 525, 600, 700, 840, 1050, 1400, 2100, 4200, 4957, 9914, 14871, 19828, 24785, 29742, 34699, 39656, 49570, 59484, 69398, 74355, 99140, 104097, 118968, 123925, 138796, 148710, 173495, 198280, 208194, 247850, 277592, 297420, 346990, 371775, 416388, 495700, 520485, 594840, 693980, 743550, 832776, 867475, 991400, 1040970, 1387960, 1487100, 1734950, 2081940, 2602425, 2974200, 3469900, 4163880, 5204850, 6939800, 10409700, 20819400]

約数ペア:

[(1, 20819400), (2, 10409700), (3, 6939800), (4, 5204850), (5, 4163880), (6, 3469900), (7, 2974200), (8, 2602425), (10, 2081940), (12, 1734950), (14, 1487100), (15, 1387960), (20, 1040970), (21, 991400), (24, 867475), (25, 832776), (28, 743550), (30, 693980), (35, 594840), (40, 520485), (42, 495700), (50, 416388), (56, 371775), (60, 346990), (70, 297420), (75, 277592), (84, 247850), (100, 208194), (105, 198280), (120, 173495), (140, 148710), (150, 138796), (168, 123925), (175, 118968), (200, 104097), (210, 99140), (280, 74355), (300, 69398), (350, 59484), (420, 49570), (525, 39656), (600, 34699), (700, 29742), (840, 24785), (1050, 19828), (1400, 14871), (2100, 9914), (4200, 4957)]