28632760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1$

素因数の和:161

約数の個数: 128

約数和(自身を含む): 76204800

約数和(自身を除く): 47572040

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 41, 52, 65, 68, 79, 82, 85, 104, 130, 136, 158, 164, 170, 205, 221, 260, 316, 328, 340, 395, 410, 442, 520, 533, 632, 680, 697, 790, 820, 884, 1027, 1066, 1105, 1343, 1394, 1580, 1640, 1768, 2054, 2132, 2210, 2665, 2686, 2788, 3160, 3239, 3485, 4108, 4264, 4420, 5135, 5330, 5372, 5576, 6478, 6715, 6970, 8216, 8840, 9061, 10270, 10660, 10744, 12956, 13430, 13940, 16195, 17459, 18122, 20540, 21320, 25912, 26860, 27880, 32390, 34918, 36244, 41080, 42107, 45305, 53720, 55063, 64780, 69836, 72488, 84214, 87295, 90610, 110126, 129560, 139672, 168428, 174590, 181220, 210535, 220252, 275315, 336856, 349180, 362440, 421070, 440504, 550630, 698360, 715819, 842140, 1101260, 1431638, 1684280, 2202520, 2863276, 3579095, 5726552, 7158190, 14316380, 28632760]

約数ペア:

[(1, 28632760), (2, 14316380), (4, 7158190), (5, 5726552), (8, 3579095), (10, 2863276), (13, 2202520), (17, 1684280), (20, 1431638), (26, 1101260), (34, 842140), (40, 715819), (41, 698360), (52, 550630), (65, 440504), (68, 421070), (79, 362440), (82, 349180), (85, 336856), (104, 275315), (130, 220252), (136, 210535), (158, 181220), (164, 174590), (170, 168428), (205, 139672), (221, 129560), (260, 110126), (316, 90610), (328, 87295), (340, 84214), (395, 72488), (410, 69836), (442, 64780), (520, 55063), (533, 53720), (632, 45305), (680, 42107), (697, 41080), (790, 36244), (820, 34918), (884, 32390), (1027, 27880), (1066, 26860), (1105, 25912), (1343, 21320), (1394, 20540), (1580, 18122), (1640, 17459), (1768, 16195), (2054, 13940), (2132, 13430), (2210, 12956), (2665, 10744), (2686, 10660), (2788, 10270), (3160, 9061), (3239, 8840), (3485, 8216), (4108, 6970), (4264, 6715), (4420, 6478), (5135, 5576), (5330, 5372)]