154211980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:144

約数の個数: 144

約数和(自身を含む): 387120384

約数和(自身を除く): 232908404

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 31, 38, 52, 53, 62, 65, 76, 95, 106, 124, 130, 155, 190, 212, 247, 260, 265, 310, 361, 380, 403, 494, 530, 589, 620, 689, 722, 806, 988, 1007, 1060, 1178, 1235, 1378, 1444, 1612, 1643, 1805, 2014, 2015, 2356, 2470, 2756, 2945, 3286, 3445, 3610, 4028, 4030, 4693, 4940, 5035, 5890, 6572, 6890, 7220, 7657, 8060, 8215, 9386, 10070, 11191, 11780, 13091, 13780, 15314, 16430, 18772, 19133, 20140, 21359, 22382, 23465, 26182, 30628, 31217, 32860, 38266, 38285, 42718, 44764, 46930, 52364, 55955, 62434, 65455, 76532, 76570, 85436, 93860, 95665, 106795, 111910, 124868, 130910, 145483, 153140, 156085, 191330, 213590, 223820, 248729, 261820, 290966, 312170, 382660, 405821, 427180, 497458, 581932, 593123, 624340, 727415, 811642, 994916, 1186246, 1243645, 1454830, 1623284, 2029105, 2372492, 2487290, 2909660, 2965615, 4058210, 4974580, 5931230, 7710599, 8116420, 11862460, 15421198, 30842396, 38552995, 77105990, 154211980]

約数ペア:

[(1, 154211980), (2, 77105990), (4, 38552995), (5, 30842396), (10, 15421198), (13, 11862460), (19, 8116420), (20, 7710599), (26, 5931230), (31, 4974580), (38, 4058210), (52, 2965615), (53, 2909660), (62, 2487290), (65, 2372492), (76, 2029105), (95, 1623284), (106, 1454830), (124, 1243645), (130, 1186246), (155, 994916), (190, 811642), (212, 727415), (247, 624340), (260, 593123), (265, 581932), (310, 497458), (361, 427180), (380, 405821), (403, 382660), (494, 312170), (530, 290966), (589, 261820), (620, 248729), (689, 223820), (722, 213590), (806, 191330), (988, 156085), (1007, 153140), (1060, 145483), (1178, 130910), (1235, 124868), (1378, 111910), (1444, 106795), (1612, 95665), (1643, 93860), (1805, 85436), (2014, 76570), (2015, 76532), (2356, 65455), (2470, 62434), (2756, 55955), (2945, 52364), (3286, 46930), (3445, 44764), (3610, 42718), (4028, 38285), (4030, 38266), (4693, 32860), (4940, 31217), (5035, 30628), (5890, 26182), (6572, 23465), (6890, 22382), (7220, 21359), (7657, 20140), (8060, 19133), (8215, 18772), (9386, 16430), (10070, 15314), (11191, 13780), (11780, 13091)]