400013600

素因数分解:

$2^5\times 5^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1171}}^1$

素因数の和:1259

約数の個数: 144

約数和(自身を含む): 1135302336

約数和(自身を除く): 735288736

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 56, 61, 70, 80, 100, 112, 122, 140, 160, 175, 200, 224, 244, 280, 305, 350, 400, 427, 488, 560, 610, 700, 800, 854, 976, 1120, 1171, 1220, 1400, 1525, 1708, 1952, 2135, 2342, 2440, 2800, 3050, 3416, 4270, 4684, 4880, 5600, 5855, 6100, 6832, 8197, 8540, 9368, 9760, 10675, 11710, 12200, 13664, 16394, 17080, 18736, 21350, 23420, 24400, 29275, 32788, 34160, 37472, 40985, 42700, 46840, 48800, 58550, 65576, 68320, 71431, 81970, 85400, 93680, 117100, 131152, 142862, 163940, 170800, 187360, 204925, 234200, 262304, 285724, 327880, 341600, 357155, 409850, 468400, 500017, 571448, 655760, 714310, 819700, 936800, 1000034, 1142896, 1311520, 1428620, 1639400, 1785775, 2000068, 2285792, 2500085, 2857240, 3278800, 3571550, 4000136, 5000170, 5714480, 6557600, 7143100, 8000272, 10000340, 11428960, 12500425, 14286200, 16000544, 20000680, 25000850, 28572400, 40001360, 50001700, 57144800, 80002720, 100003400, 200006800, 400013600]

約数ペア:

[(1, 400013600), (2, 200006800), (4, 100003400), (5, 80002720), (7, 57144800), (8, 50001700), (10, 40001360), (14, 28572400), (16, 25000850), (20, 20000680), (25, 16000544), (28, 14286200), (32, 12500425), (35, 11428960), (40, 10000340), (50, 8000272), (56, 7143100), (61, 6557600), (70, 5714480), (80, 5000170), (100, 4000136), (112, 3571550), (122, 3278800), (140, 2857240), (160, 2500085), (175, 2285792), (200, 2000068), (224, 1785775), (244, 1639400), (280, 1428620), (305, 1311520), (350, 1142896), (400, 1000034), (427, 936800), (488, 819700), (560, 714310), (610, 655760), (700, 571448), (800, 500017), (854, 468400), (976, 409850), (1120, 357155), (1171, 341600), (1220, 327880), (1400, 285724), (1525, 262304), (1708, 234200), (1952, 204925), (2135, 187360), (2342, 170800), (2440, 163940), (2800, 142862), (3050, 131152), (3416, 117100), (4270, 93680), (4684, 85400), (4880, 81970), (5600, 71431), (5855, 68320), (6100, 65576), (6832, 58550), (8197, 48800), (8540, 46840), (9368, 42700), (9760, 40985), (10675, 37472), (11710, 34160), (12200, 32788), (13664, 29275), (16394, 24400), (17080, 23420), (18736, 21350)]