138656420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{149}}^1$

素因数の和:222

約数の個数: 144

約数和(自身を含む): 371347200

約数和(自身を除く): 232690780

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 23, 28, 34, 35, 46, 68, 70, 85, 92, 115, 119, 140, 149, 161, 170, 230, 238, 289, 298, 322, 340, 391, 460, 476, 578, 595, 596, 644, 745, 782, 805, 1043, 1156, 1190, 1445, 1490, 1564, 1610, 1955, 2023, 2086, 2380, 2533, 2737, 2890, 2980, 3220, 3427, 3910, 4046, 4172, 5066, 5215, 5474, 5780, 6647, 6854, 7820, 8092, 10115, 10132, 10430, 10948, 12665, 13294, 13685, 13708, 17135, 17731, 20230, 20860, 23989, 25330, 26588, 27370, 33235, 34270, 35462, 40460, 43061, 46529, 47978, 50660, 54740, 58259, 66470, 68540, 70924, 86122, 88655, 93058, 95956, 116518, 119945, 132940, 172244, 177310, 186116, 215305, 232645, 233036, 239890, 291295, 301427, 354620, 407813, 430610, 465290, 479780, 582590, 602854, 815626, 861220, 930580, 990403, 1165180, 1205708, 1507135, 1631252, 1980806, 2039065, 3014270, 3961612, 4078130, 4952015, 6028540, 6932821, 8156260, 9904030, 13865642, 19808060, 27731284, 34664105, 69328210, 138656420]

約数ペア:

[(1, 138656420), (2, 69328210), (4, 34664105), (5, 27731284), (7, 19808060), (10, 13865642), (14, 9904030), (17, 8156260), (20, 6932821), (23, 6028540), (28, 4952015), (34, 4078130), (35, 3961612), (46, 3014270), (68, 2039065), (70, 1980806), (85, 1631252), (92, 1507135), (115, 1205708), (119, 1165180), (140, 990403), (149, 930580), (161, 861220), (170, 815626), (230, 602854), (238, 582590), (289, 479780), (298, 465290), (322, 430610), (340, 407813), (391, 354620), (460, 301427), (476, 291295), (578, 239890), (595, 233036), (596, 232645), (644, 215305), (745, 186116), (782, 177310), (805, 172244), (1043, 132940), (1156, 119945), (1190, 116518), (1445, 95956), (1490, 93058), (1564, 88655), (1610, 86122), (1955, 70924), (2023, 68540), (2086, 66470), (2380, 58259), (2533, 54740), (2737, 50660), (2890, 47978), (2980, 46529), (3220, 43061), (3427, 40460), (3910, 35462), (4046, 34270), (4172, 33235), (5066, 27370), (5215, 26588), (5474, 25330), (5780, 23989), (6647, 20860), (6854, 20230), (7820, 17731), (8092, 17135), (10115, 13708), (10132, 13685), (10430, 13294), (10948, 12665)]