19442640

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{163}}^1$

素因数の和:257

約数の個数: 160

約数和(自身を含む): 70281216

約数和(自身を除く): 50838576

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 71, 80, 84, 105, 112, 120, 140, 142, 163, 168, 210, 213, 240, 280, 284, 326, 336, 355, 420, 426, 489, 497, 560, 568, 652, 710, 815, 840, 852, 978, 994, 1065, 1136, 1141, 1304, 1420, 1491, 1630, 1680, 1704, 1956, 1988, 2130, 2282, 2445, 2485, 2608, 2840, 2982, 3260, 3408, 3423, 3912, 3976, 4260, 4564, 4890, 4970, 5680, 5705, 5964, 6520, 6846, 7455, 7824, 7952, 8520, 9128, 9780, 9940, 11410, 11573, 11928, 13040, 13692, 14910, 17040, 17115, 18256, 19560, 19880, 22820, 23146, 23856, 27384, 29820, 34230, 34719, 39120, 39760, 45640, 46292, 54768, 57865, 59640, 68460, 69438, 81011, 91280, 92584, 115730, 119280, 136920, 138876, 162022, 173595, 185168, 231460, 243033, 273840, 277752, 324044, 347190, 405055, 462920, 486066, 555504, 648088, 694380, 810110, 925840, 972132, 1215165, 1296176, 1388760, 1620220, 1944264, 2430330, 2777520, 3240440, 3888528, 4860660, 6480880, 9721320, 19442640]

約数ペア:

[(1, 19442640), (2, 9721320), (3, 6480880), (4, 4860660), (5, 3888528), (6, 3240440), (7, 2777520), (8, 2430330), (10, 1944264), (12, 1620220), (14, 1388760), (15, 1296176), (16, 1215165), (20, 972132), (21, 925840), (24, 810110), (28, 694380), (30, 648088), (35, 555504), (40, 486066), (42, 462920), (48, 405055), (56, 347190), (60, 324044), (70, 277752), (71, 273840), (80, 243033), (84, 231460), (105, 185168), (112, 173595), (120, 162022), (140, 138876), (142, 136920), (163, 119280), (168, 115730), (210, 92584), (213, 91280), (240, 81011), (280, 69438), (284, 68460), (326, 59640), (336, 57865), (355, 54768), (420, 46292), (426, 45640), (489, 39760), (497, 39120), (560, 34719), (568, 34230), (652, 29820), (710, 27384), (815, 23856), (840, 23146), (852, 22820), (978, 19880), (994, 19560), (1065, 18256), (1136, 17115), (1141, 17040), (1304, 14910), (1420, 13692), (1491, 13040), (1630, 11928), (1680, 11573), (1704, 11410), (1956, 9940), (1988, 9780), (2130, 9128), (2282, 8520), (2445, 7952), (2485, 7824), (2608, 7455), (2840, 6846), (2982, 6520), (3260, 5964), (3408, 5705), (3423, 5680), (3912, 4970), (3976, 4890), (4260, 4564)]