27997900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1$

素因数の和:128

約数の個数: 144

約数和(自身を含む): 75995136

約数和(自身を除く): 47997236

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 25, 28, 35, 37, 46, 47, 50, 70, 74, 92, 94, 100, 115, 140, 148, 161, 175, 185, 188, 230, 235, 259, 322, 329, 350, 370, 460, 470, 518, 575, 644, 658, 700, 740, 805, 851, 925, 940, 1036, 1081, 1150, 1175, 1295, 1316, 1610, 1645, 1702, 1739, 1850, 2162, 2300, 2350, 2590, 3220, 3290, 3404, 3478, 3700, 4025, 4255, 4324, 4700, 5180, 5405, 5957, 6475, 6580, 6956, 7567, 8050, 8225, 8510, 8695, 10810, 11914, 12173, 12950, 15134, 16100, 16450, 17020, 17390, 21275, 21620, 23828, 24346, 25900, 27025, 29785, 30268, 32900, 34780, 37835, 39997, 42550, 43475, 48692, 54050, 59570, 60865, 75670, 79994, 85100, 86950, 108100, 119140, 121730, 148925, 151340, 159988, 173900, 189175, 199985, 243460, 279979, 297850, 304325, 378350, 399970, 559958, 595700, 608650, 756700, 799940, 999925, 1119916, 1217300, 1399895, 1999850, 2799790, 3999700, 5599580, 6999475, 13998950, 27997900]

約数ペア:

[(1, 27997900), (2, 13998950), (4, 6999475), (5, 5599580), (7, 3999700), (10, 2799790), (14, 1999850), (20, 1399895), (23, 1217300), (25, 1119916), (28, 999925), (35, 799940), (37, 756700), (46, 608650), (47, 595700), (50, 559958), (70, 399970), (74, 378350), (92, 304325), (94, 297850), (100, 279979), (115, 243460), (140, 199985), (148, 189175), (161, 173900), (175, 159988), (185, 151340), (188, 148925), (230, 121730), (235, 119140), (259, 108100), (322, 86950), (329, 85100), (350, 79994), (370, 75670), (460, 60865), (470, 59570), (518, 54050), (575, 48692), (644, 43475), (658, 42550), (700, 39997), (740, 37835), (805, 34780), (851, 32900), (925, 30268), (940, 29785), (1036, 27025), (1081, 25900), (1150, 24346), (1175, 23828), (1295, 21620), (1316, 21275), (1610, 17390), (1645, 17020), (1702, 16450), (1739, 16100), (1850, 15134), (2162, 12950), (2300, 12173), (2350, 11914), (2590, 10810), (3220, 8695), (3290, 8510), (3404, 8225), (3478, 8050), (3700, 7567), (4025, 6956), (4255, 6580), (4324, 6475), (4700, 5957), (5180, 5405)]