15539860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{101}}^1\times {\mathrm{157}}^1$

素因数の和:281

約数の個数: 72

約数和(自身を含む): 38581704

約数和(自身を除く): 23041844

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 101, 140, 157, 196, 202, 245, 314, 404, 490, 505, 628, 707, 785, 980, 1010, 1099, 1414, 1570, 2020, 2198, 2828, 3140, 3535, 4396, 4949, 5495, 7070, 7693, 9898, 10990, 14140, 15386, 15857, 19796, 21980, 24745, 30772, 31714, 38465, 49490, 63428, 76930, 79285, 98980, 110999, 153860, 158570, 221998, 317140, 443996, 554995, 776993, 1109990, 1553986, 2219980, 3107972, 3884965, 7769930, 15539860]

約数ペア:

[(1, 15539860), (2, 7769930), (4, 3884965), (5, 3107972), (7, 2219980), (10, 1553986), (14, 1109990), (20, 776993), (28, 554995), (35, 443996), (49, 317140), (70, 221998), (98, 158570), (101, 153860), (140, 110999), (157, 98980), (196, 79285), (202, 76930), (245, 63428), (314, 49490), (404, 38465), (490, 31714), (505, 30772), (628, 24745), (707, 21980), (785, 19796), (980, 15857), (1010, 15386), (1099, 14140), (1414, 10990), (1570, 9898), (2020, 7693), (2198, 7070), (2828, 5495), (3140, 4949), (3535, 4396)]