20901300

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{269}}^1$

素因数の和:330

約数の個数: 144

約数和(自身を含む): 71245440

約数和(自身を除く): 50344140

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 37, 42, 50, 60, 70, 74, 75, 84, 100, 105, 111, 140, 148, 150, 175, 185, 210, 222, 259, 269, 300, 350, 370, 420, 444, 518, 525, 538, 555, 700, 740, 777, 807, 925, 1036, 1050, 1076, 1110, 1295, 1345, 1554, 1614, 1850, 1883, 2100, 2220, 2590, 2690, 2775, 3108, 3228, 3700, 3766, 3885, 4035, 5180, 5380, 5550, 5649, 6475, 6725, 7532, 7770, 8070, 9415, 9953, 11100, 11298, 12950, 13450, 15540, 16140, 18830, 19425, 19906, 20175, 22596, 25900, 26900, 28245, 29859, 37660, 38850, 39812, 40350, 47075, 49765, 56490, 59718, 69671, 77700, 80700, 94150, 99530, 112980, 119436, 139342, 141225, 149295, 188300, 199060, 209013, 248825, 278684, 282450, 298590, 348355, 418026, 497650, 564900, 597180, 696710, 746475, 836052, 995300, 1045065, 1393420, 1492950, 1741775, 2090130, 2985900, 3483550, 4180260, 5225325, 6967100, 10450650, 20901300]

約数ペア:

[(1, 20901300), (2, 10450650), (3, 6967100), (4, 5225325), (5, 4180260), (6, 3483550), (7, 2985900), (10, 2090130), (12, 1741775), (14, 1492950), (15, 1393420), (20, 1045065), (21, 995300), (25, 836052), (28, 746475), (30, 696710), (35, 597180), (37, 564900), (42, 497650), (50, 418026), (60, 348355), (70, 298590), (74, 282450), (75, 278684), (84, 248825), (100, 209013), (105, 199060), (111, 188300), (140, 149295), (148, 141225), (150, 139342), (175, 119436), (185, 112980), (210, 99530), (222, 94150), (259, 80700), (269, 77700), (300, 69671), (350, 59718), (370, 56490), (420, 49765), (444, 47075), (518, 40350), (525, 39812), (538, 38850), (555, 37660), (700, 29859), (740, 28245), (777, 26900), (807, 25900), (925, 22596), (1036, 20175), (1050, 19906), (1076, 19425), (1110, 18830), (1295, 16140), (1345, 15540), (1554, 13450), (1614, 12950), (1850, 11298), (1883, 11100), (2100, 9953), (2220, 9415), (2590, 8070), (2690, 7770), (2775, 7532), (3108, 6725), (3228, 6475), (3700, 5649), (3766, 5550), (3885, 5380), (4035, 5180)]