19600980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{59}}^1\times {\mathrm{113}}^1$

素因数の和:198

約数の個数: 144

約数和(自身を含む): 65499840

約数和(自身を除く): 45898860

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 59, 60, 70, 84, 98, 105, 113, 118, 140, 147, 177, 196, 210, 226, 236, 245, 294, 295, 339, 354, 413, 420, 452, 490, 565, 588, 590, 678, 708, 735, 791, 826, 885, 980, 1130, 1180, 1239, 1356, 1470, 1582, 1652, 1695, 1770, 2065, 2260, 2373, 2478, 2891, 2940, 3164, 3390, 3540, 3955, 4130, 4746, 4956, 5537, 5782, 6195, 6667, 6780, 7910, 8260, 8673, 9492, 11074, 11564, 11865, 12390, 13334, 14455, 15820, 16611, 17346, 20001, 22148, 23730, 24780, 26668, 27685, 28910, 33222, 33335, 34692, 40002, 43365, 46669, 47460, 55370, 57820, 66444, 66670, 80004, 83055, 86730, 93338, 100005, 110740, 133340, 140007, 166110, 173460, 186676, 200010, 233345, 280014, 326683, 332220, 400020, 466690, 560028, 653366, 700035, 933380, 980049, 1306732, 1400070, 1633415, 1960098, 2800140, 3266830, 3920196, 4900245, 6533660, 9800490, 19600980]

約数ペア:

[(1, 19600980), (2, 9800490), (3, 6533660), (4, 4900245), (5, 3920196), (6, 3266830), (7, 2800140), (10, 1960098), (12, 1633415), (14, 1400070), (15, 1306732), (20, 980049), (21, 933380), (28, 700035), (30, 653366), (35, 560028), (42, 466690), (49, 400020), (59, 332220), (60, 326683), (70, 280014), (84, 233345), (98, 200010), (105, 186676), (113, 173460), (118, 166110), (140, 140007), (147, 133340), (177, 110740), (196, 100005), (210, 93338), (226, 86730), (236, 83055), (245, 80004), (294, 66670), (295, 66444), (339, 57820), (354, 55370), (413, 47460), (420, 46669), (452, 43365), (490, 40002), (565, 34692), (588, 33335), (590, 33222), (678, 28910), (708, 27685), (735, 26668), (791, 24780), (826, 23730), (885, 22148), (980, 20001), (1130, 17346), (1180, 16611), (1239, 15820), (1356, 14455), (1470, 13334), (1582, 12390), (1652, 11865), (1695, 11564), (1770, 11074), (2065, 9492), (2260, 8673), (2373, 8260), (2478, 7910), (2891, 6780), (2940, 6667), (3164, 6195), (3390, 5782), (3540, 5537), (3955, 4956), (4130, 4746)]