28130760

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{61}}^2$

素因数の和:149

約数の個数: 192

約数和(自身を含む): 108950400

約数和(自身を除く): 80819640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 61, 63, 70, 72, 84, 90, 105, 108, 120, 122, 126, 135, 140, 168, 180, 183, 189, 210, 216, 244, 252, 270, 280, 305, 315, 360, 366, 378, 420, 427, 488, 504, 540, 549, 610, 630, 732, 756, 840, 854, 915, 945, 1080, 1098, 1220, 1260, 1281, 1464, 1512, 1647, 1708, 1830, 1890, 2135, 2196, 2440, 2520, 2562, 2745, 3294, 3416, 3660, 3721, 3780, 3843, 4270, 4392, 5124, 5490, 6405, 6588, 7320, 7442, 7560, 7686, 8235, 8540, 10248, 10980, 11163, 11529, 12810, 13176, 14884, 15372, 16470, 17080, 18605, 19215, 21960, 22326, 23058, 25620, 26047, 29768, 30744, 32940, 33489, 37210, 38430, 44652, 46116, 51240, 52094, 55815, 57645, 65880, 66978, 74420, 76860, 78141, 89304, 92232, 100467, 104188, 111630, 115290, 130235, 133956, 148840, 153720, 156282, 167445, 200934, 208376, 223260, 230580, 234423, 260470, 267912, 312564, 334890, 390705, 401868, 446520, 461160, 468846, 502335, 520940, 625128, 669780, 703269, 781410, 803736, 937692, 1004670, 1041880, 1172115, 1339560, 1406538, 1562820, 1875384, 2009340, 2344230, 2813076, 3125640, 3516345, 4018680, 4688460, 5626152, 7032690, 9376920, 14065380, 28130760]

約数ペア:

[(1, 28130760), (2, 14065380), (3, 9376920), (4, 7032690), (5, 5626152), (6, 4688460), (7, 4018680), (8, 3516345), (9, 3125640), (10, 2813076), (12, 2344230), (14, 2009340), (15, 1875384), (18, 1562820), (20, 1406538), (21, 1339560), (24, 1172115), (27, 1041880), (28, 1004670), (30, 937692), (35, 803736), (36, 781410), (40, 703269), (42, 669780), (45, 625128), (54, 520940), (56, 502335), (60, 468846), (61, 461160), (63, 446520), (70, 401868), (72, 390705), (84, 334890), (90, 312564), (105, 267912), (108, 260470), (120, 234423), (122, 230580), (126, 223260), (135, 208376), (140, 200934), (168, 167445), (180, 156282), (183, 153720), (189, 148840), (210, 133956), (216, 130235), (244, 115290), (252, 111630), (270, 104188), (280, 100467), (305, 92232), (315, 89304), (360, 78141), (366, 76860), (378, 74420), (420, 66978), (427, 65880), (488, 57645), (504, 55815), (540, 52094), (549, 51240), (610, 46116), (630, 44652), (732, 38430), (756, 37210), (840, 33489), (854, 32940), (915, 30744), (945, 29768), (1080, 26047), (1098, 25620), (1220, 23058), (1260, 22326), (1281, 21960), (1464, 19215), (1512, 18605), (1647, 17080), (1708, 16470), (1830, 15372), (1890, 14884), (2135, 13176), (2196, 12810), (2440, 11529), (2520, 11163), (2562, 10980), (2745, 10248), (3294, 8540), (3416, 8235), (3660, 7686), (3721, 7560), (3780, 7442), (3843, 7320), (4270, 6588), (4392, 6405), (5124, 5490)]