218212720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{421}}^1$

素因数の和:495

約数の個数: 160

約数和(自身を含む): 602818560

約数和(自身を除く): 384605840

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 31, 38, 40, 44, 55, 62, 76, 80, 88, 95, 110, 124, 152, 155, 176, 190, 209, 220, 248, 304, 310, 341, 380, 418, 421, 440, 496, 589, 620, 682, 760, 836, 842, 880, 1045, 1178, 1240, 1364, 1520, 1672, 1684, 1705, 2090, 2105, 2356, 2480, 2728, 2945, 3344, 3368, 3410, 4180, 4210, 4631, 4712, 5456, 5890, 6479, 6736, 6820, 7999, 8360, 8420, 9262, 9424, 11780, 12958, 13051, 13640, 15998, 16720, 16840, 18524, 23155, 23560, 25916, 26102, 27280, 31996, 32395, 33680, 37048, 39995, 46310, 47120, 51832, 52204, 63992, 64790, 65255, 74096, 79990, 87989, 92620, 103664, 104408, 127984, 129580, 130510, 143561, 159980, 175978, 185240, 208816, 247969, 259160, 261020, 287122, 319960, 351956, 370480, 439945, 495938, 518320, 522040, 574244, 639920, 703912, 717805, 879890, 991876, 1044080, 1148488, 1239845, 1407824, 1435610, 1759780, 1983752, 2296976, 2479690, 2727659, 2871220, 3519560, 3967504, 4959380, 5455318, 5742440, 7039120, 9918760, 10910636, 11484880, 13638295, 19837520, 21821272, 27276590, 43642544, 54553180, 109106360, 218212720]

約数ペア:

[(1, 218212720), (2, 109106360), (4, 54553180), (5, 43642544), (8, 27276590), (10, 21821272), (11, 19837520), (16, 13638295), (19, 11484880), (20, 10910636), (22, 9918760), (31, 7039120), (38, 5742440), (40, 5455318), (44, 4959380), (55, 3967504), (62, 3519560), (76, 2871220), (80, 2727659), (88, 2479690), (95, 2296976), (110, 1983752), (124, 1759780), (152, 1435610), (155, 1407824), (176, 1239845), (190, 1148488), (209, 1044080), (220, 991876), (248, 879890), (304, 717805), (310, 703912), (341, 639920), (380, 574244), (418, 522040), (421, 518320), (440, 495938), (496, 439945), (589, 370480), (620, 351956), (682, 319960), (760, 287122), (836, 261020), (842, 259160), (880, 247969), (1045, 208816), (1178, 185240), (1240, 175978), (1364, 159980), (1520, 143561), (1672, 130510), (1684, 129580), (1705, 127984), (2090, 104408), (2105, 103664), (2356, 92620), (2480, 87989), (2728, 79990), (2945, 74096), (3344, 65255), (3368, 64790), (3410, 63992), (4180, 52204), (4210, 51832), (4631, 47120), (4712, 46310), (5456, 39995), (5890, 37048), (6479, 33680), (6736, 32395), (6820, 31996), (7999, 27280), (8360, 26102), (8420, 25916), (9262, 23560), (9424, 23155), (11780, 18524), (12958, 16840), (13051, 16720), (13640, 15998)]